The five most common signs of a clogged drain are water that drains slowly, gurgling sounds, foul odors, clogs that keep coming back, and backups that show up in more than one fixture at once. One sign usually means a local clog. Several signs together, especially across multiple drains, point to a bigger blockage that needs a plumber.
Most clogs build up over weeks or months as hair, grease, soap scum, and food scraps stick to the inside of the pipe. Catching the early signs gives you time to clear a small problem before it turns into water on the floor.
1. Water Drains Slowly
Slow drainage is usually the first sign of a clogged drain. A sink that used to empty in seconds now holds water, or the shower leaves you standing in a few inches of water by the end.
Buildup narrows the pipe a little more with every use. In bathrooms it’s usually hair and soap scum. In kitchens it’s grease, oils, and food scraps that cool and harden inside the line. A slow drain rarely fixes itself, and the longer it goes, the more likely it is to block completely.
What to do: Pull and clean the stopper or strainer, then try a plunger. If the drain is still slow, it’s time for professional drain cleaning before the line closes off entirely.
2. Gurgling Sounds From Drains or Toilets
Gurgling means air is being forced through water in the drain because something is restricting flow. Your drains need air moving freely behind the water to work properly. When a clog or a blocked vent gets in the way, trapped air bubbles up through the fixture and makes that gurgling noise.
Where you hear it matters:
One drain gurgles: Likely a partial clog in that fixture’s line.
A toilet gurgles when you run the sink or tub: The clog may be in a shared line further down.
Several fixtures gurgle and drain slowly: Could be a main line problem or a blocked plumbing vent on the roof.
Vent blockages from leaves, debris, or nests are common, but clearing them means working on the roof. That’s a job for a plumber, not a ladder project.
3. Bad Smells Coming From the Drain
A foul or sewage-like smell from a drain usually comes from one of two things: decaying buildup inside the pipe, or sewer gas getting past the trap.
Every fixture has a P-trap, the curved pipe under the drain that holds a small amount of water. That water seal keeps sewer gas out of your home. If a drain is rarely used, like a basement floor drain or a guest bathroom shower, the water can evaporate and let odors through. Running water down the drain for a few seconds refills the trap.
If the smell stays after you refill the trap, or you smell sewage in more than one spot, the problem is likely further down the line. A clog, a vent issue, or a damaged sewer pipe can all cause it.
4. Clogs That Keep Coming Back
A drain that clogs once and clears is a nuisance. A drain that clogs again every few weeks is telling you the real buildup was never removed.
Plungers and store-bought cleaners usually just poke a small opening through the middle of a clog. The material coating the pipe walls stays put, so the drain slows down again. Harsh chemical cleaners can also be hard on older pipes and are dangerous to handle if a plumber later has to open the line.
Recurring clogs usually call for a deeper cleaning. Depending on what’s causing them, that might mean cabling the line or hydro jetting, which uses high-pressure water to scour buildup off the pipe walls.
5. Backups in More Than One Fixture
When water backs up in places it shouldn’t, such as the tub filling when you flush the toilet or the basement floor drain backing up when the washing machine drains, the clog is likely in the main sewer line. Every drain in your house empties into that one line, so a blockage there stops all wastewater from leaving.
The lowest drains in the house usually show it first, because backed-up water rises to the lowest opening it can find. That’s why basement floor drains and first-floor tubs and showers are common trouble spots.
This is the sign not to wait on. Stop running water in the house and call a plumber. Every flush or load of laundry adds to the backup and raises the chance of sewage reaching your floors.
What Do the Signs of a Clogged Drain Tell You?
Use this quick check to figure out whether you’re dealing with one drain or the main line, and how serious the clog is likely to be.
Local clog vs. main sewer line clog
What you notice
Likely location
What to do
One sink, tub, or shower drains slowly
That fixture’s drain line
Clean the stopper and plunge; call if it doesn’t improve
Same drain clogs again within weeks
Heavy buildup on the pipe walls
Schedule a professional drain cleaning
Toilet gurgles when the nearby sink runs
Shared branch line or vent
Have a plumber diagnose it
Several fixtures slow or gurgling at once
Main line or roof vent
Call a plumber soon
Water backs up into a tub, shower, or floor drain
Main sewer line
Stop using water and call right away
What Causes Drains to Clog in Northern Virginia Homes?
Most clogs come from what goes down the drain: grease and food in kitchens, and hair and soap in bathrooms. Two other causes show up often in established Northern Virginia neighborhoods.
Tree roots: Mature trees send roots toward the moisture in sewer lines, and they can work into joints and small cracks. Recurring main line clogs in an older home with big trees in the yard are a common pattern.
Aging pipes: Older drain lines can corrode, sag, or shift over time. Rough or uneven pipe walls catch debris faster.
When the cause isn’t obvious, a sewer camera inspection shows exactly what’s in the line, whether it’s grease, roots, or a damaged section that needs sewer line repair.
How Can You Prevent Clogged Drains?
A few habits go a long way:
Pour cooking grease into a container and throw it out instead of rinsing it down the sink.
Scrape plates into the trash before rinsing, even if you have a garbage disposal.
Use hair catchers in showers and tubs, and clean them regularly.
Flush only toilet paper. “Flushable” wipes and paper towels don’t break down like toilet paper does.
Run water through rarely used drains now and then to keep the traps filled.
Deal with slow drains early instead of waiting for a full blockage.
Frequently Asked Questions
How can I tell if my main sewer line is clogged?
The clearest sign is more than one fixture backing up at once. If flushing a toilet makes water rise in the tub, or running the washer causes the basement floor drain to back up, the blockage is likely in the main line. Water around a floor drain with no obvious source is another warning sign. Stop using water and call a plumber.
Are chemical drain cleaners safe to use?
They’re best avoided. Chemical cleaners usually open only a small channel through a clog and leave the buildup on the pipe walls, so the drain slows again. They can be hard on older pipes and are hazardous to skin and eyes. If the drain doesn’t clear, any chemical left in the line also makes the job riskier for the plumber who has to open it.
Will boiling water unclog a drain?
Hot water can help loosen a minor soap or grease buildup in a kitchen sink, but it won’t clear hair, solid clogs, or anything in the main line. Boiling water can also damage PVC pipe joints and some fixtures, so hot tap water is the safer option. If the drain is still slow afterward, the clog needs mechanical cleaning.
Why does my drain gurgle?
Gurgling happens when air is pushed through the water in the drain because flow is restricted. A partial clog in that fixture’s line is the most common cause. If several drains gurgle or a toilet gurgles when other fixtures run, the issue may be in a shared line, the main sewer line, or a blocked plumbing vent.
When should I call a plumber for a clogged drain?
Call when a plunger doesn’t clear it, when the same drain keeps clogging, when more than one fixture is slow or gurgling, or when you smell sewage that doesn’t go away after running water. Any backup into a tub, shower, or floor drain should be handled right away to avoid water damage.
Get Your Drains Flowing Again
If you’re seeing any of these signs, Kinnett Plumbing can find the cause and clear it properly. We’re a family-owned Northern Virginia plumber, licensed, bonded, and insured, with a 4.9-star rating across 811 reviews. We’ll tell you honestly what your drains need, with no upsell pressure, and we offer discounts for military members, teachers, police officers, and firefighters.
If your gas water heater is not working, the cause is usually one of four things: no gas reaching the unit, a pilot light that has gone out, a dirty or failing thermocouple, or a faulty gas control valve. Most homeowners can safely check the first three themselves. If those checks don’t bring back hot water, call a licensed plumber.
Below is a safety-first troubleshooting sequence, a quick symptom chart, and clear guidance on where DIY ends and professional repair begins.
Before You Start: If You Smell Gas, Stop
If you notice a rotten-egg odor near the water heater, don’t troubleshoot anything. Leave the house right away, don’t flip light switches or use anything that could spark, and call your gas utility or 911 from outside.
Natural gas has an odorant added so leaks are noticeable. A water heater that has quit and a smell of gas together is a safety issue, not a repair project. Only continue with the steps below if there’s no gas odor.
Why Is My Gas Water Heater Not Working? Quick Symptom Chart
Match what you’re seeing to the most likely cause, then jump to the matching step.
Common gas water heater problems and what to check
What you notice
Most likely cause
What to do
No hot water at all, pilot is out
Pilot extinguished or gas supply interrupted
Check the gas supply, then relight the pilot (Steps 1–3)
Pilot lights but goes out when you release the knob
Dirty, bent, or failing thermocouple
Check thermocouple position and condition (Step 4)
Pilot stays lit, but the main burner never fires
Thermostat set too low or a failed gas control valve
Check the thermostat setting (Step 5); call a plumber if it still won’t fire
Hot water runs out fast or is only lukewarm
Sediment buildup, thermostat setting, or a broken dip tube
Check the setting; schedule a flush or inspection
Status light blinking, unit won’t relight
Built-in safety shutoff has tripped
Check the owner’s manual code; don’t force repeated relights
Water pooling under the tank
Leak from fittings, the relief valve, or the tank itself
Shut off gas and cold water inlet; call a plumber
Step-by-Step Gas Water Heater Troubleshooting
Work through these in order. Each step rules out a cause before you move to the next one.
Step 1: Confirm Gas Is Reaching the House
Turn on a gas stove burner or another gas appliance. If nothing in the house has gas, the problem is upstream of the water heater. Contact your gas utility rather than working on the tank.
Step 2: Check the Water Heater’s Gas Shut-Off Valve
Find the manual valve on the gas line feeding the water heater. The handle should run parallel to the pipe, which means it’s open. A valve that got bumped partly closed during other work nearby is a more common cause than people expect.
Step 3: Check the Pilot and Relight It If Needed
Look through the small sight window near the bottom of the tank. If you don’t see a small blue flame, the pilot is out. Relight it by following the instructions printed on your tank’s label, since the sequence varies by model. On most standing-pilot units it looks like this:
Turn the gas control knob to OFF and wait the time listed on the label so any gas can clear.
Turn the knob to PILOT and press it down.
While holding it down, press the igniter button until the pilot lights.
Keep holding the knob for the time the label specifies so the thermocouple can heat up.
Release the knob, confirm the pilot stays lit, then turn the knob to ON.
Some newer gas water heaters use electronic ignition instead of a standing pilot, and some use a power vent fan. Those models need electricity. If yours has a power cord or is hardwired, make sure it’s plugged in and its breaker hasn’t tripped.
Step 4: Look at the Thermocouple
If the pilot lights but goes out the moment you let go of the knob, the thermocouple is the usual suspect. This small copper rod sits in the pilot flame and tells the gas valve it’s safe to keep gas flowing. When it’s coated in soot or has bent out of the flame, the valve shuts off gas as a safety measure.
Check that the tip sits directly in the pilot flame. Some homeowners gently clean a cool thermocouple with fine sandpaper. If cleaning doesn’t help, the part needs replacing. That’s a common, inexpensive repair, but it has to be seated correctly to work, so it’s reasonable to hand it off if you’re not comfortable working near the burner.
Step 5: Check the Thermostat Setting
If the pilot stays lit but the main burner never comes on, look at the temperature dial on the gas control valve. A dial turned to VACATION or its lowest setting won’t call for heat. Turn it up to your normal setting and listen for the burner to ignite.
If the dial is set correctly and the burner still won’t fire, the gas control valve may have failed internally. Don’t take it apart. That part controls gas flow and needs professional testing and replacement.
Step 6: Don’t Keep Forcing a Safety Shutoff
Modern gas water heaters have built-in safety devices, including a high-temperature cutoff and, on many units, a sensor that shuts the burner down if it detects flammable vapors or a combustion problem. A blinking status light often means one of these has tripped. Look up the code in your owner’s manual. If the unit keeps shutting itself off, stop relighting it. The shutdown is telling you something needs a professional look.
What Temperature Should a Gas Water Heater Be Set To?
The U.S. Consumer Product Safety Commission recommends setting residential water heaters to 120°F. That’s hot enough for everyday household use while greatly reducing the risk of tap water scalds, especially for young children and older adults.
How quickly hot tap water can cause third-degree burns in adults
Dial markings on gas water heaters aren’t precise, so check the actual temperature. The CPSC suggests holding a thermometer under the tap first thing in the morning or at least two hours after anyone has used hot water, then adjusting the dial and rechecking.
Also keep the season in mind. In Northern Virginia winters, the water coming into your home is much colder, so a heater that’s working fine can take longer to recover and may seem weaker than it does in summer.
When Should You Call a Plumber for a Gas Water Heater?
Call a licensed plumber when the basic checks don’t restore hot water or when the problem involves gas, venting, or the tank itself. Specifically:
The pilot won’t stay lit after the thermocouple is cleaned or replaced. The gas control valve is the likely culprit.
The burner won’t fire even with the pilot lit and the thermostat turned up. This also points to the gas control valve.
Water is pooling at the base. A leaking tank can’t be patched and needs replacement. Fittings and relief valve leaks can often be repaired.
You hear popping or rumbling. Heavy sediment on the tank bottom makes the burner work harder and can shorten the heater’s life.
The safety shutoff keeps tripping. Repeated shutdowns can signal a venting, combustion, or overheating problem.
The heater is near the end of its service life. The U.S. Department of Energy notes that storage water heaters typically last 10 to 15 years. An older unit with repeated failures is often a better candidate for replacement than another repair.
Anything involving the gas line, venting, or installing a new tank is work for a licensed professional, both for safety and to meet building code.
Repair or Replace?
A younger heater with a single failed part, such as a thermocouple, igniter, or relief valve, is usually worth repairing. A leaking tank, or an older unit that keeps breaking down, usually isn’t. If replacement makes more sense, you can compare tank water heater installation with a switch to a tankless water heater before you decide.
Frequently Asked Questions
Why does my gas water heater pilot light keep going out?
The most common cause is a dirty, bent, or worn-out thermocouple that can’t sense the pilot flame, so the gas valve shuts off. Drafts near the unit, a clogged pilot opening, or a failing gas control valve can also cause it. If cleaning and repositioning the thermocouple doesn’t fix it, have a plumber test the thermocouple and valve.
Is it safe to relight a water heater pilot light myself?
Yes, as long as you don’t smell gas and you follow the lighting instructions on your tank’s label exactly. Turn the control off and wait before relighting so any gas can clear. If you smell gas at any point, stop, leave the house, and call your gas utility from outside. Never relight a pilot that keeps going out repeatedly.
Why do I get hot water for a moment and then it turns cold?
A broken dip tube is a common cause. The dip tube sends incoming cold water to the bottom of the tank to be heated. When it breaks, cold water enters near the top and mixes with the hot water at the outlet, so the shower turns lukewarm quickly. It’s a manageable repair, but the tank has to be drained to fix it.
Can I still use water if my gas water heater isn’t working?
Yes. Your cold water supply runs separately from the water heater, so sinks, toilets, and cold-water appliances keep working. The exception is a leaking tank. In that case, close the cold water inlet valve above the heater and turn the gas control to OFF to limit water damage until a plumber can look at it.
What are early warning signs that a gas water heater is failing?
Watch for water that doesn’t get as hot as it used to, hot water that runs out faster, rusty or discolored hot water, popping or rumbling sounds, and moisture or drips around the base or fittings. Any visible leak deserves prompt attention, since a small drip can turn into a tank failure.
Get Your Hot Water Back With Kinnett Plumbing
If you’ve worked through these checks and still have no hot water, Kinnett Plumbing can diagnose the problem and handle the repair or replacement. We’re a family-owned Northern Virginia plumber, licensed, bonded, and insured, with a 4.9-star rating across 811 reviews. We give you an honest assessment of whether repair or replacement makes sense, with no upsell pressure, and offer discounts for military members, teachers, police officers, and firefighters.
Why is my garbage disposal leaking? Where the water shows up tells you. A leak at the top usually means the plumber’s putty at the sink flange has failed or the mounting assembly has loosened. A leak on the side points to the dishwasher hose or the discharge tube. A leak from the bottom usually means the internal seals have worn out, and the unit needs to be replaced.
Most top and side leaks are fixable with basic tools. Before you start, turn off the disposal at the wall switch and at the circuit breaker, or unplug it if it’s plugged into an outlet under the sink.
How to Find Where Your Garbage Disposal Is Leaking
Water travels. A drip from the top of the disposal can run down the side and fall off the bottom, which makes a simple fix look like a dead unit. Take five minutes to find the true source first.
Dry everything. Wipe down the disposal, the pipes, the dishwasher hose, and the cabinet floor with paper towels until nothing is damp.
Grab a flashlight. You’ll want to see the top, both sides, and the bottom of the unit clearly.
Run cold water into the sink for 30 to 60 seconds and watch for the first sign of moisture.
Turn the disposal on with the water running. Some leaks only appear when the unit is vibrating.
Run the dishwasher’s drain cycle if nothing has shown up yet. Leaks at the dishwasher connection only appear when the dishwasher pumps water through it.
Note where water appears first. That spot is your answer.
Also check above the disposal. A leak at the base of the faucet or at the sink’s supply lines can drip down onto the disposal and look like a disposal leak. If that’s the source, you need a faucet repair, not a new disposal.
Why Is My Garbage Disposal Leaking? Match the Leak to the Cause
Garbage disposal leak location, likely cause, and fix
Where the leak appears
Likely cause
Usual fix
Top, where the disposal meets the sink
Dried or cracked plumber’s putty at the sink flange
Remove the flange, clean it, and reseal with fresh putty (DIY-friendly)
Top, with a disposal that wobbles
Loose mounting assembly
Tighten the mounting ring and screws (DIY-friendly)
Side, only when the dishwasher drains
Loose clamp or worn dishwasher drain hose
Tighten or replace the clamp or hose (DIY-friendly)
Side, at the pipe running to the drain
Worn gasket or loose bolts on the discharge tube
Replace the gasket and tighten the connection (DIY-friendly)
Bottom, often near the reset button
Failed internal seals or a cracked housing
Replace the disposal
Where a garbage disposal leaks tells you what failed: top and side leaks are usually repairable, while bottom leaks usually mean replacement.
1. Worn Plumber’s Putty at the Sink Flange
The sink flange is the metal collar that sits in the sink’s drain opening. A ring of plumber’s putty seals it to the sink. Over years, that putty dries out, shrinks, and cracks, and water starts seeping between the flange and the sink before dripping onto the top of the disposal.
To reseal it:
Turn off power to the disposal at the breaker.
Disconnect the dishwasher hose and discharge tube, then remove the disposal from the mounting ring. Support the unit from below, since disposals are heavier than they look.
Loosen the mounting assembly and push the flange up and out of the sink.
Scrape all the old putty off the flange and the sink opening, then clean both surfaces.
Roll a fresh, even rope of plumber’s putty, press it around the underside of the flange lip, and set the flange back in the drain.
Reinstall the mounting assembly, tighten it evenly, wipe away the excess putty, and remount the disposal.
Reconnect the hoses, restore power, and run water to check for leaks.
2. A Loose Mounting Assembly
The disposal hangs from a mounting assembly that clamps to the flange. Years of vibration can loosen it enough to break the seal even when the putty is fine. If the disposal wobbles when you push on it, tighten the mounting assembly first. It takes a few minutes and sometimes solves the leak on its own. If the drip returns, reseal the flange.
3. The Dishwasher Hose Connection
If your dishwasher drains through the disposal, its drain hose connects to a small inlet on the side of the unit with a hose clamp. That clamp can loosen or corrode, and the hose can crack with age. Because the leak only appears when the dishwasher drains, it’s easy to miss.
Tighten the clamp with a screwdriver. If the clamp is rusted or the end of the hose is cracked, replace them. Hose clamps are inexpensive and widely available.
4. The Discharge Tube Gasket
The discharge tube is the bent pipe that carries ground-up waste from the disposal to the drain line. It connects to the disposal with a rubber gasket and a flange held by bolts. The gasket hardens over time, and vibration loosens the bolts.
Tighten the bolts first. If the leak continues, remove the tube, replace the gasket with one that fits your model, and reinstall it. Also check the slip nut where the tube meets the P-trap. If the leak is farther down the drain line, or the drain backs up when you run the disposal, the problem may be in the pipe itself, and professional drain cleaning may be the fix.
5. Failed Internal Seals or a Cracked Housing
A leak from the very bottom of the disposal, often around the reset button, is different from the others. It doesn’t come from a connection. It comes from inside the unit, where seals keep water in the grinding chamber away from the motor. When those seals wear out, or the housing cracks, water escapes out the bottom.
This is the one leak that almost always means replacement. The internal seals generally aren’t sold as consumer repair parts, and the labor to take the motor apart would typically cost more than a new disposal. Stop using the unit, keep the power off, and plan a replacement. Water leaking near a motor and wiring is not something to keep running.
How to Prevent Garbage Disposal Leaks
A few habits help your disposal and its seals last longer:
Keep grease and oil out of the drain. They coat the unit and the pipes and contribute to clogs.
Don’t overload it. Feed food in gradually with the water running instead of packing the chamber first.
Don’t overtighten fittings. Plastic fittings and the housing can crack under too much force.
Look under the sink every month or so. Catching a slow drip early protects the cabinet.
If you do find water, dry the cabinet out quickly. The U.S. Environmental Protection Agency’s guidance is to respond to clean water damage within 24 to 48 hours to help prevent mold growth, which matters in a closed sink cabinet.
When to Call a Plumber
Call a licensed plumber when:
The leak is coming from the bottom of the unit
Water is near the disposal’s wiring or the outlet under the sink
You’ve tightened and resealed the connections, and it still leaks
The disposal body is visibly cracked
The cabinet floor is soft, swollen, or stained from a long-term leak
Kinnett Plumbing’s garbage disposal repair service starts with finding the real source. If a new gasket or fresh putty will fix it, that’s what we’ll recommend. We’ll only suggest a replacement when the unit actually needs one.
Frequently Asked Questions
Can a garbage disposal leaking from the bottom be fixed?
Usually not. A leak from the bottom almost always means the internal seals have failed or the housing has cracked. Those seals generally aren’t sold as repair parts, and taking the motor apart typically costs more than a new unit. Before you give up on it, dry the unit and retest to confirm the water isn’t dripping down from the top or side.
Why does my garbage disposal only leak when the dishwasher runs?
That pattern points to the dishwasher drain connection on the side of the disposal. The clamp holding the dishwasher hose may be loose or corroded, or the hose may be cracked near its end. Tighten the clamp first, then replace the clamp or hose if the leak continues. Watch the connection during a drain cycle to confirm it.
Is it safe to use a leaking garbage disposal?
It’s best to stop using it until you find the source. A leak at the sink flange or a side connection isn’t dangerous on its own, but it will keep damaging the cabinet. A bottom leak means water is getting near the motor and wiring, so keep the power off and plan a replacement.
Should I use hot or cold water with a garbage disposal?
Use cold water. Disposal manufacturers recommend a steady stream of cool or cold water while the unit runs, because it keeps fats solid so they move through the drain instead of coating the unit and pipes. Keep the water running for a few seconds after grinding stops to flush the drain line.
Get Your Kitchen Sink Back to Normal
Most garbage disposal leaks are small fixes. When they aren’t, you want a plumber who will tell you straight. Kinnett Plumbing is a licensed, family-owned plumbing company based in Manassas, with a 4.9-star rating across 811 reviews from Northern Virginia homeowners.
Fall sump pump maintenance comes down to a few checks before storm season: clear leaves away from the discharge outlet, clean the pit and intake screen, bucket-test the float switch, test the battery backup with the main pump unplugged, and make sure the check valve and power supply are sound. Plan on about an hour, and finish before the first big fall storm.
This is the fall-specific version of our routine. For the full year-round schedule, see our sump pump maintenance checklist.
Why Fall Is Hard on Northern Virginia Sump Pumps
Fall asks more of a sump pump than almost any other season. Several things tend to pile up at once:
Heavy rain from late-season storms. The Atlantic hurricane season runs through November 30, and the remnants of tropical systems can bring several days of soaking rain to the region.
Falling leaves. Wet leaves collect around the outdoor end of the discharge pipe and can block it within a single windy week.
Power outages. The same storms that fill your sump pit can knock out power, which is exactly when a standard pump stops working.
A pump that’s been sitting idle. After a dry stretch in late summer, a pump may not have run in weeks, and a stuck float or seized impeller won’t show itself until the pit fills.
Your Fall Sump Pump Maintenance Checklist
Work through these steps in order. Always cut power to the pump before you put your hands in the pit.
Start outside at the discharge outlet. Clear leaves, mulch, and debris from the end of the pipe, and confirm the water will drain away from your foundation, not back toward it.
Unplug the pump or switch off its circuit before touching anything in the pit.
Clean the pit and intake screen. Lift the pump out if you can, scoop out silt and gravel from the bottom of the basin, and brush off the intake screen.
Check that the float moves freely. Make sure the float can rise and fall without catching on the pit wall, the power cord, or the discharge pipe.
Listen when the pump shuts off. A rush of water flowing back into the pit points to a failing check valve.
Test the battery backup using the steps in the section below.
Check the power supply. Look over the cord for damage, plug the pump directly into its outlet rather than an extension cord, and confirm the circuit breaker is on.
How to Clear a Clogged Sump Pump Discharge Line
A blocked discharge line is one of the most common reasons a pump fails during a storm. With nowhere for the water to go, the pump runs against the blockage, overheats, and can burn out.
Walk the line from where it leaves your foundation to where it ends in the yard. Clear the outlet, and check any extension pipe or buried line for crushed sections. If water backs up in the pipe or the pump runs without moving water even after you’ve cleared the outlet, the clog may be inside the line. That’s a good time to call a plumber, since forcing a buried line can damage it.
A battery backup is your protection when a storm takes out the power. According to NDSU Extension, a typical backup system uses a 12-volt DC pump powered by a battery on a specially designed trickle charger, with its own check valve on the outlet pipe and a float set to turn on only when water rises above the primary pump’s turn-on level.
To test it:
Confirm the battery is fully charged using the indicator on the control unit.
Shut off power to the main sump pump and to the backup system’s charger.
Pour water into the pit until the backup pump turns on.
Watch that it empties the pit and shuts off on its own.
Restore power to both the main pump and the charger.
If you don’t have a backup yet, fall is a good time to add one. Kinnett Plumbing installs backup and battery-powered sump pumps as part of our sump pump installation and repair services.
What Your Sump Pump Is Telling You
If something didn’t look or sound right during your checks, use this table to narrow it down.
Common sump pump symptoms and what they usually mean
Symptom
What it usually means
What to do
Hums but doesn’t pump
Jammed impeller, clogged intake screen, or blocked discharge line
Unplug it, clear the intake and outlet, and retest. Call a plumber if it still hums.
Turns on and off constantly
Water flowing back through a failed check valve, or a float set too tight
Listen for backflow when it shuts off. A worn check valve should be replaced.
Runs without stopping
Stuck float switch, or water coming in faster than the pump can remove it
Check that the float moves freely. If it does, the pump may be undersized.
Won’t turn on at all
Tripped breaker, unplugged cord, stuck float, or a failed motor
Check power first, then the float. A dead motor means replacement.
Water keeps rising toward the top of the pit
The pump can’t keep up with the inflow
A larger pump or a backup may be needed. Call for an assessment.
Backup system alarm is sounding
Low battery or a charger problem
Check the control unit and battery per the manufacturer’s instructions.
Water pooling near a basement bathroom or laundry area instead of the sump pit may be a different system. An ejector pump handles wastewater from below-grade fixtures and needs its own ejector pump service.
When to Call a Plumber
Routine fall checks are a homeowner job. Call a licensed plumber when:
The pump fails the bucket test or the battery backup test
You’ve cleared the outlet, but the discharge line still seems blocked
The check valve is letting water flow back into the pit
You don’t know how old the pump is, and it’s never been professionally checked
You want to add a battery backup before the next outage
If your pump fails in the middle of a storm and water is rising, contact our emergency plumbing team.
Frequently Asked Questions
When should I do fall sump pump maintenance?
Aim for September or early October, before leaves start dropping heavily and before the late-season storms that often reach Northern Virginia. Test again after any long power outage, and give the pump another check in late winter before spring rains. If your pump runs often, check it more frequently.
Why is my sump pump humming but not pumping water?
A hum usually means the motor is getting power but can’t move water. Common causes are a jammed impeller, a clogged intake screen, a stuck float, or a blocked or frozen discharge line. Unplug the pump right away to protect the motor, clear what you safely can, and call a plumber if it still won’t pump.
Does a battery backup sump pump need its own check valve?
In a typical setup, yes. NDSU Extension describes backup systems with their own check valve on the backup pump’s outlet pipe, which then connects to the primary pump’s discharge line. Without it, water pushed out by one pump can flow back into the pit through the other. A plumber can confirm your setup is plumbed correctly.
What should I do if my sump pump fails during a storm?
Stay out of standing water if the pump or any outlet may be energized. If you can reach the breaker safely, cut power to the pump. Move belongings to higher ground, and start removing water with a wet vacuum or a portable pump if you have one. Then call a plumber for emergency service.
Get Your Sump Pump Ready Before the Storms
A few minutes now is a lot easier than a flooded basement later. If your pump didn’t pass one of the checks above, or you’d like a battery backup installed before storm season, Kinnett Plumbing can help. We’re a licensed, family-owned plumbing company based in Manassas, and we’ll give you an honest assessment of what your system needs and what it doesn’t.
A tank water heater typically lasts about 10 to 15 years, and a tankless water heater about 20 years, according to the U.S. Department of Energy. So how long does a water heater last in your home? That depends on your water quality, how well the unit is maintained, and how hard your household works it. Once a tank passes 10 years, start watching for warning signs.
Below, we’ll cover the typical lifespan by type, what wears a water heater out early, the signs yours is running on borrowed time, and how to decide between repairing it and replacing it before it fails.
How Long Does a Water Heater Last by Type?
The type of water heater makes the biggest difference. Storage tanks wear out fastest because the tank itself eventually corrodes, and a corroded tank can’t be repaired.
Typical water heater lifespan by type
Water heater type
Typical lifespan
What usually ends its life
Conventional storage tank (gas or electric)
10 to 15 years
Tank corrosion and leaks, often sped up by sediment
Tankless (on-demand)
About 20 years
Scale buildup in the heat exchanger and worn components
Heat pump (hybrid electric) storage
ENERGY STAR’s savings estimates assume about 13 years
Tank corrosion, plus wear on the compressor and controls
Two water heaters installed on the same day can fail years apart. These are the usual reasons:
Sediment buildup. Minerals in your water settle at the bottom of the tank. That layer makes the burner or elements work harder and longer to heat the water, which adds stress and speeds up wear.
A used-up anode rod. Tank water heaters have a sacrificial anode rod that corrodes so the steel tank doesn’t. Once the rod is gone, the tank starts to rust from the inside.
High temperature settings. Running the tank hotter than you need increases energy use and wear.
Heavy demand. A unit that’s too small for your household cycles constantly and wears out sooner.
High water pressure. Excess pressure strains the tank, fittings, and relief valve over time.
7 Signs Your Water Heater Is on Borrowed Time
Most water heaters give warnings before they fail. If you notice any of these, have the unit inspected before it becomes an emergency:
It’s more than 10 years old. Age alone is a good reason to start planning, especially for a tank model.
Rusty or discolored hot water. Brown or orange hot water can point to corrosion inside the tank.
Popping, rumbling, or banging noises. This is usually water trapped under a layer of sediment, boiling and bursting through as the unit heats.
Moisture or water around the base. A leak from the tank itself means the unit needs to be replaced.
Less hot water than it used to make. Sediment takes up space and insulates the water from the heat source.
Temperature swings. Water that runs hot, then lukewarm, can mean a failing thermostat, heating element, or heavy sediment.
Corrosion on fittings, valves, or the tank. Rust or crusty buildup on the connections is an early sign of trouble.
If your water heater shows one or more of these signs, our water heater services team can tell you whether a repair makes sense or whether it’s time to plan a replacement.
How Can You Tell How Old Your Water Heater Is?
Start with the label, or rating plate, on the side of the unit. Many manufacturers code the manufacture date into the serial number, but the format varies by brand. If you can’t decode it, your installation paperwork or home inspection report may list the date, or a plumber can read the serial number for you during a service visit.
Should You Repair or Replace Your Water Heater?
Many water heater problems can be repaired. A thermostat, heating element, gas control part, drain valve, or temperature and pressure relief valve can often be replaced without replacing the whole unit.
Replacement usually makes more sense when:
The tank itself is leaking
The unit is past 10 years old and needs repeated repairs
It can no longer keep up with your household’s hot water needs
The repair cost is high compared to the price of a new unit
Test the temperature and pressure relief valve as part of routine service. It’s a key safety device.
Descale tankless units on the schedule the manufacturer recommends so mineral scale doesn’t build up in the heat exchanger.
Why Replace Your Water Heater Before It Fails?
When a water heater fails without warning, you’re dealing with no hot water, possible water damage, and pressure to pick a replacement fast. Planning ahead lets you choose the right type and size, schedule the work, and avoid cleanup costs on top of the new unit.
It’s also the best time to consider a more efficient model:
Gas tankless water heaters: ENERGY STAR estimates certified models save a family of four about $95 per year, or $1,800 over the unit’s lifetime, on gas bills compared to a standard gas storage model.
According to the U.S. Department of Energy, a conventional storage tank water heater typically lasts 10 to 15 years, and a tankless water heater lasts about 20 years. Water quality, maintenance, temperature settings, and household demand all affect where your unit falls in that range. Tanks that are never flushed often land at the shorter end.
Do water heaters really last 20 years?
Tankless water heaters can. The Department of Energy and ENERGY STAR both put their expected life at about 20 years with proper maintenance. A standard storage tank rarely reaches 20 years, because the tank eventually corrodes. Most tank owners should start planning for a replacement once the unit passes 10 years.
Should I replace a 10-year-old water heater that still works?
Not automatically, but it’s a good time to have it inspected. A plumber can check for corrosion, sediment, and a worn anode rod and tell you how much life is likely left. Replacing on your own schedule avoids the risk of a sudden tank leak and gives you time to compare more efficient options.
Can a leaking water heater be repaired?
It depends on where the leak is. A leak from a drain valve, relief valve, or pipe connection can often be repaired. A leak from the tank itself can’t be fixed, because it means the tank wall has corroded through. In that case, shut off the water and power or gas to the unit and plan a replacement.
Does flushing a water heater make it last longer?
Yes. Flushing clears the sediment that settles at the bottom of the tank, which reduces strain on the burner or heating elements and helps the unit heat efficiently. Once a year is a good baseline for most homes. Pairing annual flushing with periodic anode rod checks is one of the best ways to extend a tank’s life.
Get a Straight Answer on Your Water Heater
If your water heater is past 10 years old or showing any of the warning signs above, Kinnett Plumbing can inspect it and give you an honest recommendation, whether that’s a simple repair or a planned replacement. We’re a licensed, bonded, and insured family-owned company with a 4.9-star rating across 811 reviews, and we don’t push replacements you don’t need.
A member of our team will be in touch shortly to confirm your contact details or address questions you may have.
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