How high is a washing machine standpipe?
How high is a washing machine standpipe? 30-36” Laundry standpipes must be tall enough to extend past the washing machine's overflow line—typically 30-36” in height, or 18”-30” above the trap. How big is the drain pipe on a washing machine? Connecting a Washing Machine. The drain hose for most washing machines is usually between 1 and 1 1/2 inches wide. A gooseneck at the end slips into the top of the drain standpipe. The drain hose is secured inside the drain pipe by means of a hose clamp, tie or some other securing fixture. Do you need a drain pipe...