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Bob4
Account deleted

join:2012-07-22
New Jersey
reply to mepadre

Re: Sump Pump - Discharge riser freezing

My 2 cents. Note that I have zero experience with sump pumps...

Get rid of the check valves by running separate pipes up and through the wall. Have each pipe go through an air gap where they enter the drain.

This will allow water to drain back into the pit, removing any standing water from the pipe, preventing freezing.