gully washer,
Thanks for the response! That is great to know that the ball valve can be accessed through the grate on the vent supply pipe. Just so I understand correctly, the check valve will not be necessary. The reason I ask this question is because I’m unsure if the amount of air in the vent pipe (valve open) and capped surface of the dam will interfere with starting in automatic siphon mode? Will the siphon overcome the air in the system?
Thanks!
Heppy
