Does my washer drain need a trap?
When hooking up a new washing machine, some people look for a convenient drain line and simply install a pipe that extends to the washer. The lack of a P-trap exposes the area to sewer fumes and the lack of venting will cause the drain to run sluggishly and overflow. Washers, like all fixtures, need a trap.
What size pipe should I use for washer drain?
2-inch
Drain and Trap Requirements A 2-inch drain pipe is required for all washing machines. The former requirement of 1 1/2-inch pipe is not enough to handle the fast drainage of modern washers. As with all plumbing fixtures and appliances, a washing machine drain pipe must also contain a P-trap.
How high should a washer drain pipe be?
In order for the drain hose on your Top Load washer to function properly, the drain must be at least 30″ up from the floor and less than 8 feet high. In order for the drain hose on your Front Load washer to function properly, the drain must be at least 24″ up from the floor and less than 8 feet high.
What size drain is needed for a washing machine?
Do you need a trap to drain a washing machine?
Washers, like all fixtures, need a trap. The correct way to drain a washing machine is to install a standpipe. That is a vertical length of pipe that connects to a P-trap that, in turn, connects to the drain.
What kind of drain pipe do I need for my washing machine?
G. is the trap arm, a 2″ p-traps trap arm must be no longer than 60″, have at least 1/4″ per foot of grade, and have only horizontal off sets. H. is the horizontal drain this fixture is joined to. It will be below the floor.
Why does my washing machine not have a P-trap?
If they omit the trap and vent, it’s a mistake that can cause problems on two counts. The lack of a P-trap exposes the area to sewer fumes and the lack of venting will cause the drain to run sluggishly and overflow. Washers, like all fixtures, need a trap.
Where does the drain line go in a washing machine?
A drain line carries washing machine drain water from the trap to the main drain. Vents provide air so the drain lines don’t become vacuum-locked. The vent will usually rise straight out of the sanitary tee that the P-trap is connected to. In some installations it may connect directly to the drain line near the trap.
Washers, like all fixtures, need a trap. The correct way to drain a washing machine is to install a standpipe. That is a vertical length of pipe that connects to a P-trap that, in turn, connects to the drain.
Can a washing machine drain pipe be vented?
NEVER install a washing machine drain pipe and vent like this. Look at MY drawing below. Kevin, the answer is NO.
If they omit the trap and vent, it’s a mistake that can cause problems on two counts. The lack of a P-trap exposes the area to sewer fumes and the lack of venting will cause the drain to run sluggishly and overflow. Washers, like all fixtures, need a trap.
How tall should A P trap be for a washing machine?
The pipe should be between 18 and 30 inches high from the floor, while the P-trap should be between 6 and 18 inches from the floor. These standpipes connect into the home sewage system. They should also be vented according to the Universal Plumbing Code or the local codes in your area.
