Washing Machine Drain Without Vent

If your drain is not at least 30 from the base of the washer you can use an anti siphon clip to attach the hose to the back of the washer.

Washing machine drain without vent.

If the washing machine drain continues to have backflow problems ensure the drain vent is connected and properly working. When builders look only at the table without reading the text they find that a 2 inch diameter drain can run a maximum distance of 8 feet to the vent. This is the purpose of a venting system. They may also see that the slope column references 1 4 inch per foot but they are likely to assume that it s just reiterating the minimum allowable slope for a 2 inch drain.

If they omit the trap and vent it s a mistake that can. Without having the drain hose located high enough gravity will take over and the water filling the washing machine will run out of the hose and into the floor drain. All household drains are vented to a drain vent typically located on the. 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. If the drain of your washing machine fits tightly into the drain you definitely need a washing machine drain vent. A washing machine drain vent serves a very important purpose. In your scenario if a fixture that s farther upstream discharges lots of water that rushes by the wye fitting where your washing machine drain pipe connects the vacuum created by the water rushing past the washing machine branch wye will siphon water from your trap.

It allows air in which prevents the. As water goes down a drain air is needed to equalize the pressure in the drain line. In each a is the vent b is the trap arm and c is the drain. Kevin the answer is no.

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.