Thanks for all th extra pictures - much appreciated! ����������
Dumb question #1: Why is there a backwash valve, when you have a cartridge filer?
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The city requires it.
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Talk to them about encapsulating the autofiller into the gunite shel (similar to your skimmer and how the forms look around it). The way it is set up now could cause a crack in the plumbing if the deck moves from expansion/contraction.
Thanks, I will speak with them about that