Tony posted an answer for this Hayward SAND FILTER, PRO SERIES:
"If you go 28 psi or over on your gauge, you should then backwash. I typically backwash..."
Tony posted an answer for this Hayward SAND FILTER, PRO SERIES:
"You want to be between 18-28 psi on your gauge."
Tony posted a question about Hayward SAND FILTER, PRO SERIES:
"My Hayward S200 is leaking from the bottom. What could be the reason?"