Pipe for the trap and standpipe for a washing machine drain which i have seen work perfectly in hundreds of installations especially with todays water conserving washers. Didnt check the code but generally the standpipe height is anywhere above the flood level rim of the new laundry sink. Washing machine drain hose installation.
basement washing machine standpipe
Youre best to cut out that cast iron tee and put in two wyes or tees.
Basement washing machine standpipe. Install wall hung laundry utility tub washer standpipe air admittance valve duration. An important thing to remember when plumbing a standpipe is to provide venting because a draining washing machine sends enough water through the pipes to empty p traps in nearby sinks and toilets. For washing machine drain connections in new construction the irc requires that 2 in. Vent the trap by tying into the existing drain waste vent dwv system or if thats not possible by adding an air.
How to install a washing machine stand pipe drain 2 trap stand pipe height. To clean the standpipe simply pour a half cup of baking soda down into the pipe followed by a cup of white vinegar. Many jurisdictions allow 112 in. One for the sink and one for the standpipe.
Just make sure the stack vertical pipe is supported you do not want it to slide down. Allow the mixture to sit for at least 30 minutes to kill the bacteria. Pipe be used for the trap with a minimum 18 in high standpipe above the trap. Laundry standpipes must be tall enough to extend past the washing machines overflow linetypically 30 36 in height or 18 30 above the trap.
Standpipes should be at least 2 in diameter and large enough to accept the washing machines drain hose. At one time residential code allowed for 1 standpipes but that size is no longer sufficient for newer washing machines.
