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Question by  Fritz (608)

Why does my sump pump smell and is it dangerous?

Is this something I can fix?

 
+7

Answer by  jkc (258)

If it smells of electrical burning then it is in trouble and is in need replacing if it smells of the surrounding environment then it might not be functioning correctly.

Reply by Eman911 (1):
Noticed a plastic burning smell in my 2nd floor bathroom after a long night of rain. Traced it to the vent and then to the sump in the basement. Circuit was tripped so I reset, but it hasn't been back on since.  add a comment
 
+6

Answer by  Chris3412 (12)

The harmless smell that you've noticed from your sump pump is most likely due to the water that sits at the bottom of the hole. There is no real way to deal with this smell, only to assure that the pit has proper drainage.

 
+6

Answer by  Valentine62 (2131)

I have found that the sump pump will smell if it is not used regularly. I either pour a little bleach in the hole or get tablets that are used for toilet tanks and drop one into the sump pump hole. They last for awhile, but may need replaced.

 
+6

Answer by  kipcat (1964)

If the odor is an acrid, burnt electrical smell, the windings or bearings could be going bad. This can lead to an electrical fire. If it is just a hot smell like overworked equipment, it is possible the pump is too small, but circuit protection should make it safe.

 
+5

Answer by  poolguy (61)

The most likely cause is that the pump has burned out and oil has gotten on the windings. Is the pump still working? If it's working, you may have plant or other material in the sump that is rotted and causing the smell.

 
+5

Answer by  DavidS (1517)

Depending on whether you have sewer or drain water in your pump you can fix this with either septic treatment or bleach. It should'nt be dangerous.

 
+5

Answer by  chet13 (332)

It smells because there is a buildup of toxic fumes. It is possibly very dangerous if there is a build up of gas. have checked immediately.

 
+3

Answer by  les59 (852)

Your sump pump may be growing mold inside of it. You can try running some bleach water through it, but replacement is the best option.

 
+3

Answer by  xomoney (104)

sump pump will begin to smell after about 6 months. its very common. it sits in stagnated water and can also be very toxic. keep all metals away from the sump pump area.

 
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