Bath Tub Not Draining Cold Weather Review

Mix 1/2 cup of table salt with 1 gallon of warm (not boiling) water. Pour it slowly down the drain. Salt lowers the freezing point of water, helping to break down the ice.

There are three primary reasons why winter weather affects your drainage: bath tub not draining cold weather

If snow has drifted over your plumbing vent pipe, carefully clear it using a roof rake or broom (never climb a snowy roof). Pour a bucket of warm water down the vent from the roof to melt any internal ice. Mix 1/2 cup of table salt with 1