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 frozen sump pump discharge line
Author: caffeen (WI)

Our lines outside where the sump pump empties is frozen so the pump is continuously running. I have been having to empty the "well" w/ buckets to prevent overflow but I heard this continuous running of the pump will burn it out. Is there any "tricks" to thawing outside lines??? Or will this be ok for awhile ??

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 Re: frozen sump pump discharge line
Author: e-plumber (NY)

You can wrap the pipe with an approved (electrical) heat-wrap to thaw it. Depending on how the piping is installed, you may be able to remove the check valve to prevent the discharge line from holding water.


"The society which scorns excellence in Plumbing as a humble activity and tolerates shoddiness in philosophy because it is an
exalted activity will have neither good Plumbing nor good philosophy: neither its pipes nor its theories will hold water." -
John William Gardner 10/8/1912 - 2/16/2002

Repair your leaking Plumbing fixtures ASAP [www.theplumber.com]
This slow drip will waste 7+ gallons of water per day.

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 Re: frozen sump pump discharge line
Author: goodhands3334 (MA)

your pump should only burn out when theres no water to cool it

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 Re: frozen sump pump discharge line
Author: 815-Plumbing (IL)

Sounds like you have a flexible discharge line attached to your sump pump discharge. If it's frozen, disconnect the flex (outside) and slip a piece of 3" or 4" pvc pipe (10' or longer) over the 1-1/2" pipe coming out from the house to run the water away from the foundation.

It the spring, consider running the discharge underground (with proper pitch)to a storm sewer line or to a drainage ditch.

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 Re: frozen sump pump discharge line
Author: paulr46 (IL)

Help us understand your "outside lines." This may shed more light on your issue.

In the summer, I have a 40-ft. hose running from my discharge pipe at the house to the back of the yard where there is a sewer main.

In the winter, I change it to a 6-ft. hose running from my discharge pipe that is attached to a rigid copper pipe so that there are no "low spots" where water can sit and freeze. This has never failed me.

My friends tell me they just take off the hose in the winter so that it cannot freeze and cause the situation that you described.

Good Luck!

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 Re: frozen sump pump discharge line
Author: redwood (CT)

The pipe in the cold section of the line has to be pitched to drain dry after the pump shuts off. No water, no freeze!

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 Re: frozen sump pump discharge line
Author: Jake1965 (WI)

I have a similar problem - my discharge runs from the basement about 1ft under the ground and it got frozen. Any way to thaw it ?

I have a washer/dryer next to the sump pump and there is a sink used by the washer. Is it ok to redirect discharge into the sink ?

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