How do you vent a washer drain?
Detach the drain hose from the washing machine and blow into it. This will push air through the hose and into the machine. Run some water into the washing machine and then quickly disconnect the drain hose. The rushing water will push air through the hose.
Can you vent a washer through a wall?
In many jurisdictions you have the option of an AAV – Air Admittance Valve, readily installed in a wall box behind the washer. An AAV involves a gravity seal that opens just when needed to let fresh air into the plumbing pipe. Just makes sure what you get is a real AAV, not just a cheap $3 check valve.
How do you vent a basement washing machine?
Some homeowners prefer to hook their washing machines with a convenient drain line. But the right way to vent the machine is installing a standpipe and connecting it to the P-trap, and finally, the drain. The upper part of the basement vent has to rise five feet above the overflow level.