Should I seal the washing machine drain hose to the
2018-7-6 · A standpipe is the drain pipe behind a washing machine that rises about three feet above the floor. It may only be visible as a hole in a washing machine faucet box in the wall of newer homes. Although it seems to make sense to seal the connection between the washing machine drain hose and the standpipe, the plumbing code requires an air gap to ...
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