On Jan 12, 11:14 am, wrote:

Don't forget the trap and be sure the venting works. You may need a
Studer Vent. Two issues. You don't want the retreating water to pull
the water out of your trap and you don't want the washer hose
siphoning sewer water back into the washer.

Air admittance valves such as the Studer have limitations on their
locations. It's definitely worth investigating, though, and good
points about the trap and venting issues.

R