New house and new pool fun. Never had a sand filter so I plan to read up on that...
Question: what are the holes in the deck that have a slight suction and are inline with the wall jets?
Today was my introduction to the pool.
Has a Hayward gas heater H250
Hayward sand filter S220T
The pictures are of the entire pool. And zoomed in on a hole in the deck that makes a sucking sound and has a little suction power - never seen this before....