Installing Washing Machine Drain Pipe Vent

You can see the 2 inch drain pipe leave the box and go into a p trap.

Installing washing machine drain pipe vent.

As water goes down a drain air is needed to equalize the pressure in the drain line. The same holds true for plumbing vent pipe. If they omit the trap and vent it s a mistake that can. However experts propose that the best way to ensure the proper draining of the washing machine is through the installation of a standpipe.

How to unclog a washing machine drain pipe first things first turn the water supply to the appliance off and also switch the power to the area off at the breaker before you attempt any repairs. In some areas you legally have to install a washing machine drain air vent but in other areas you don t. If the drain lines in your home have poor venting as in figure a for example water rushing down the drains will pull water from nearby p traps. The piping in the photo on the left represents a laundry sink drain while the photo on the right depicts a washing machine s stand pipe.

A good working vent is especially important for washing machines since they discharge so much water at one time. No vent unless mandated by building codes if there s a gap around the drain tube for the washing machine where it enters the drain you probably won t need to install a vent as there will be ample air to prevent the formation of a. The fixture on the left is a washing machine drain box. Branch arm to vertical stack.

There is more plumbing vent pipe in this photo than drain piping. In each a is the vent b is the trap arm and c is the drain. You only have to remember this the sanitary tee that serves each fixture is the place where the trap arm drain and vent come together. 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 vent will usually rise straight out of the sanitary tee that the p trap is connected to. This is the purpose of a venting system. Standpipe 24 inches above p trap. The vent may also serve as a vent to nearby fixtures.

Washing machine drain vent 2 inch pipe for washing machine drain. A sturdy 2 inch pipe will work well as a standpipe.