Forum Discussion
Lynnmor
Jul 02, 2019Explorer
myredracer wrote:
Our galley tank has a vent to the roof less than 3' from the sink, plus an AAV. The vent stack in our bathroom is also less than 3' to the sink & shower. Are AAVs maybe not required in some cases but they put them in anyway? Maybe AAVs in RVs are creating more trouble than they are trying to prevent (when vent stacks are close to sinks & showers)?
I think that there is little to no planning in the RV world so they just do a one size fits all approach. In your case, I would give the drains a good test with the AAVs bagged and if the traps retain water I would just eliminate the troublesome things. My trailer has no roof vent for the galley and the bath sink is more than 3 feet, so I need to keep them, So far I have noticed no problems.
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