Yes yes yes. Water level goines into return chambers and filters out thru the bottom into the second chamber which spills over.the top of the baffle. The 2 outside chambers are a consistent water level. Return pump chambers is where Ato goes. Sorry for the late reply. Havent been on here in a while.Looking great! Following along.
How does the water level look in the rear sump? Are the side chambers water level constant and overflows into the middle return pump chamber? So essentially, the ATO sensor should be in the middle chamber because of water level fluctuations?
Thanks!