Air Admittence Valve and Vacuum Breaker

[JD99336]

I have a 2013 40 QTH and noticed water under my bathroom sink. Having read that a faulty vacuum breaker can cause this (no indication that it came from a water hose or drain line and conspicuously above the container that had collected the water) I want to replace it.

I found the Valterra unit at https://www.amazon.com/dp/B00KNBGSD4...v_ov_lig_dp_it.

While I at it I want to replace the grey tank air vent which I believe is this, but please confirm that correct parts.https://www.amazon.com/Vent-Abs-Inli...f_=as_li_ss_tl

[Old-Biscuit]

Originally Posted by JD99336

I have a 2013 40 QTH and noticed water under my bathroom sink. Having read that a faulty vacuum breaker can cause this (no indication that it came from a water hose or drain line and conspicuously above the container that had collected the water) I want to replace it.

I found the Valterra unit at https://www.amazon.com/dp/B00KNBGSD4...v_ov_lig_dp_it.

YES that is a anti-siphon vacuum breker check valve for the Black Tank Flush System

While I at it I want to replace the grey tank air vent which I believe is this, but please confirm that correct parts.https://www.amazon.com/Vent-Abs-Inli...f_=as_li_ss_tl

Yes that is an AAV....those are junk
Better quality ones available by Studor or Oatley
And can be found at Home Depot/Lowes/ACE Hardware etc

[Ranger Smith]

You can get it at Lowes or the Depot for around $10. Just check the old one because they make a male and a female one

[JD99336]

Thanks all....