Sand Dollar filter.

jeremydu

Well-known member
Jun 24, 2008
77
MOBILE, AL
My 22" Sand Dollar filter is constantly on 18 psi. I can backwash it for 10 minutes and once I switch it back to filter it is still at 18psi. Why would this be happening?
 

JohnT

Admin
Mod Squad
TFP Expert
Apr 4, 2007
9,864
SW Indiana
jeremydu said:
My 22" Sand Dollar filter is constantly on 18 psi. I can backwash it for 10 minutes and once I switch it back to filter it is still at 18psi. Why would this be happening?
Unless it has previously operated at a lower pressure, there's nothing wrong. Most pools are in that range for normal pressure.