What is this? ( a plumbing question )
Found this under our bathroom sink. Any idea what it is, I don't recognize this device, some kind if a vent ? I see an arrow designating flow direction. Thanks for any input.
Forum Discussion
YEP........
That is an anti siphon-vacuum breaker device on the black tank flush system
Required to prevent cross-contamination
That is an anti siphon-vacuum breaker device on the black tank flush system
Required to prevent cross-contamination
