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Top 5 Most Common Sump Pump Problems

  
  

 

Any homeowner who has suffered throughSump Pump Problems a flood knows that having a sump pump is no guarantee of a dry basement.  In fact, many sump pumps are inherently plagued with problems.  Somehow, we managed to put a man on the moon, but we haven’t figured out yet how to manufacture a fail-proof sump pump. 

Having been in the basement waterproofing business for over 50 years, we’ve probably seen every pump on the market -- good ones, bad ones, and everything in between.  The better ones tend to fail less, but they are still imperfect. 

Below are some of the most common sump pump problems and what you can do to avoid a basement flood:

1.  Power Failure

Your primary sump pump is no different than any other electric appliance in your house -- without power, it is completely worthless.  As a safeguard, invest in a high quality back-up sump pump.  I would suggest first reading our blog on back-up pumps for further insight. 

2.  Switch was Stuck

There are several different types of sump float switches.  Vertical and tethered floats are the most common.  We strongly prefer vertical floats because tethered floats are notorious for getting stuck on the side walls of the sump pit, which can result in a flooded basement.  Some sump pumps also have mechanical pressure switches that are prone to failure.

3.  Pump was Overwhelmed

A common misconception is all pumps are created equal.  They’re not!  In sump pumps, as in life, you always get what you pay for.  Minimally, you need a 1/3 horsepower sump pump capable of pumping 35 gallons of water per minute.  Much less than that and your sump pump might not be able to keep up with the flow of water.  If your house sits in a higher water table and / or if you hear your sump pump running frequently, I’d advise upgrading to a ½ horsepower pump (which can typically pump about 60 gallons per minute).  And to be completely safe, buy a battery back-up pump

4.  Sump Discharge Pipe Froze

This is a very common occurrence with our brutal Midwest winters (although I must say this past winter was a treat!).  If the pipe isn’t pitched properly, water will collect and eventually freeze, causing a blockage.  Because what goes up must come down, the water falls right back into your sump pit.  When the pit continues to fill up, the water has no place to go but all over your basement floor.  By the way, we have an answer to this problem.

5.  Old Age

“If it ain't broke, don't fix it” is bad practice when it comes to sump pumps as you could wind up with a basement full of water.  Sump pumps should be replaced every five to seven years to be reasonably safe. 

Let us know in the Comment box below if you have any questions or concerns with your sump pump system.  We’d be happy to help.

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Comments

I have a Wayne ReliantOne 1HP submersible sump pump in my crawlspace. The pump has stopped working and kicks the breaker in the panel box. When I removed the pit lid I noticed an oily film on top of the water, which I've never seen before. Any help is greatly appreciated. Thanks, David Blackburn
Posted @ Saturday, January 05, 2013 11:33 AM by David Blackburn
David: It sounds like the motor in your sump pump has shorted out. The oily film could be lubricating oil from the motor housing. 
 
It's also possible that the impeller has seized. If you can pull the pump from the pit, see if it turns.  
 
In any event, it sounds like time for a new sump pump.
Posted @ Monday, January 07, 2013 12:14 PM by Warren Hazelton
My pump runs, shuts off an knocks like the check valve is bouncing.I have a union installed in the line if I loosen it and some air gets in it stops any ideas
Posted @ Friday, January 18, 2013 2:03 PM by Michael Taylor
Good afternoon. I purchased a home 2 years ago. My sump pump runs about every 15 to 20 mins no matter what the weather is like. Even in the cold winter or a dry summer the sump pump is always running. Shouldn't the amount of rain or the weather play a factor in how often my pump goes off? I am worried that I maybe getting water from somewhere else that is causing my pump to constantly run. Is there anyway to find that out? Please help. Thank you.
Posted @ Tuesday, January 22, 2013 4:11 PM by Randi McHugh
Randi: 
 
Your sump pump shouldn't be running that often in the conditions you describe. It is possible that your home is located in an area with a high water table and you're just dealing with a lot of groundwater accumulation. If that's the case, the only remedy is to install a larger sump basin and a high-volume sump pump. That way you won't burn out a pump motor with frequent on-offs. 
 
The other possibility is that you have a plumbing leak somewhere that is ending up in your sump basin. This can be tricky to find but you can start by seeing if the drain tile (probably black corrugated plastic pipe) that is connected to your sump basin is actually flowing. If not, then the water is coming from some other source. If you are paying for municipal water, is your water bill higher than it should be? That's one sign. It's possible that there's a leak just outside the foundation in the main water line coming into your house that is then percolating through to the drain tile. 
 
Unfortunately, all we can do is speculate but I hope this gives you a place to start. Feel free to contact us if you're in our service area; if not, a local basement waterproofing company would be a good call.
Posted @ Thursday, January 24, 2013 11:57 AM by Warren Hazelton
Our sump pump is working just fine, however, there is an oily film on the surface. Our pump runs typically 24 hours a day, we are in a flood plain. We have two sump pump pits and have had 3 floods in our basement over the years so we watch it very carefully. Should we be concerned about the oily film on the surface despite the fact that the pump is working.
Posted @ Monday, February 11, 2013 10:54 AM by Kim Emer
What is the proper height to set the float switch? Should it be below the inflow pipes into the pit? Somewhere in the middle of the pipes? I don't want my pump to be running too frequently, but I also don't know if its bad to have some water in those pipes all the time if they never fully drain into the pit.
Posted @ Tuesday, March 12, 2013 7:37 PM by Marc Vocalino
I HAVE 2 ZOELLER SUBMERSIBLE PUMPS (M-53)WITH A AUTOMATC FLOAT SWITCH.THE PUMPS WORK FINE UP TO A CERTAIN POINTWHEN THE SWITCH WON'T SHUT OFF AND THEY WILL RUN CONTINUOUSLY.I WILL TAKE THE PUMP OUT OF THE WELL TO SEE WHY THIS IS HAPPENING AND PLUG IT IN ON MY WORKBENCH AND THE SWITCH WILL WORK FINE WHEN I MOVE THE FLOAT UP AND DOWN.WHAT IS THE PROBLEM? HELLLLPP 
Posted @ Saturday, March 16, 2013 9:46 AM by Richard Lennerton
I have a sump pump with the verticle float. Sometimes after the water has finished pumping out the pump will remain on. If I press down on the switch arm it will not shut off, however if I lift the arm up and then let it go back down it shuts off. Is this a switch problem or something else?
Posted @ Tuesday, April 16, 2013 7:11 PM by bruce
Bruce: 
 
This does sound like a switch problem where the switch is only being triggered by the force of the float dropping when you lift and drop the switch arm. I'd try to find a replacement switch for your pump because if it continues to run like that it will burn out the motor. In the alternative, it may be easier just to replace the sump pump.
Posted @ Thursday, April 18, 2013 8:30 AM by Warren Hazelton
Every time it rains, my basement floods. I have a sump pump which was working fine until yesterday. when the water gets to the level the valve trigs the motor and the power goes off immediately. Any insight? Thank you. 
Antonio
Posted @ Friday, April 19, 2013 8:00 AM by Antonio Monteiro
We recently had extremely heavy rain and lots of snow this winter and our basement flooded significantly. The sump pump is kicking on and ejecting the water but when you go outside the drain the the water is to go in, just overflows and goes to the ground. We had a contractor look and said we need to replace all drain tile, another said it was something different. I can hear a gurgling sound coming from the outside where are crawl space lies. we just moved to this house about 9 months ago and the previous owner said there were never any issues, but I can't imagine this to just occur for the first time. thank you for any feedback
Posted @ Sunday, April 21, 2013 11:04 AM by joe campos
I installed a new pump and now after the pump goes off I get a knocking noise from my pipes I thought it might be air in the line. I pulled a section off. and it still made the knocking noise after the pump went off. I upgraded from 1/3 hp to 1/2 hp because I get a lot of water because of the grade of my yard. I'm not sure if I got a bad pump or what is making the noise the pipes are secure to the rafters with hangers.
Posted @ Tuesday, April 23, 2013 6:27 PM by John
Joe: 
 
You should explore the drain and learn where it leads to. 
 
If the drain is connected to city storm sewers, they may be at or over capacity from the heavy rains and just won't accept any more water. 
 
Unless the drain is connected to exterior drain tile, that probably is not the issue. Without knowing more about the specific situation, those are my best guesses. 
Posted @ Thursday, April 25, 2013 8:36 AM by Warren Hazelton
John: 
 
Is the knock just a single noise? If so, it's probably the check valve closing. We offer a silent check valve so let us know if you're in the Chicago/Milwaukee/NW Indiana area. If not, a local contractor may be able to help.
Posted @ Thursday, April 25, 2013 8:40 AM by Warren Hazelton
I am on my fourth sump pump in 10 years. REcently, I noticed the pit was full and had to actually put my hand around the float when it kicked on. RAn fine for three weeks and then last Saturday our basement flooded. My husband did the same thing and it kicked right in again. Ran great for 5 days and now it did it again. The pump works and there does not appear to be anything stopping the float, but what can I do when it does not turn on automatically. Soaking wet with husband at work, Sherrill
Posted @ Thursday, April 25, 2013 9:43 AM by S. broussard
Sherrill: 
 
When you say you put your hand around the float do you mean that you lifted it until the pump turned on? Was the float submerged when you did this? 
 
If the float isn't being blocked by anything (cords, wall of the basin, debris) it sounds like the switch arm is sticking somehow and that your moving the float is freeing it up. It's also possible that, if you have a hollow float, that a crack or small hole is allowing it to take on water over time. 
 
If the sump pump is within warranty, I'd contact the manufacturer. You can also inquire whether a replacement switch is available. 
 
In the meantime, examine the switch arm and see if it is bent or if there is debris or anything in the area where it pivots that might be causing it to stick. Also take a look at the float for damage.
Posted @ Thursday, April 25, 2013 9:59 AM by Warren Hazelton
We have lived in our house for 5 years. We have a sump pump with a backup system, we have noticed lately the system makes really loud noise while its running. The sump pump was here before we moved in, we believe its been here for at least 12 years. The system still is working but the noise is really loud. Any ideas what could be causing the noise. Thank you.
Posted @ Sunday, April 28, 2013 3:39 PM by Willf
Will: 
 
If the noise occurs while the sump pump is running it probably means that either the bearings in the pump are going bad or that the motor is on its last legs. Twelve years is a pretty good run for a sump pump so you might want to get a replacement before the old one dies and leaves you with a wet basement.
Posted @ Monday, April 29, 2013 9:34 AM by Warren Hazelton
It has recently been raining for awhile and the sump pump was keeping up with the water in the pit. After the pipe came lose from the pump it flooded some of the basement. After I corrected the problem it throws the GFCI outlet all the time. Any suggestions? Thanks J.
Posted @ Saturday, May 04, 2013 8:18 AM by Jason
Jason: 
 
It sounds like your pump has a short circuit that is tripping the GFCI. Did the pump casing get cracked or did a wire come loose?
Posted @ Monday, May 06, 2013 8:14 AM by Warren Hazelton
Is the amps stamped on the sump pump start up amps or running amps?
Posted @ Tuesday, May 14, 2013 2:07 PM by mike
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