Well it's time to replace this old metal D.E filter 60 sq/ft( Pac Fab Nautilus S Steel NS-60), rust and pinholes/salt water. The pool is around 25000- 30 000 gal .
Looking at Hayward Star-Clear cartridge filters C900 or C1200. After a few phone calls, could not find an answer pointing to which one to use.
I am using a weak chinese pump rated 1.5 HP which brought pressure from 10 to 5. Very poor stream out coming from jet. Will replace it.
C751 75 ft2 flowrate
45,000 10h C900 90 ft2 90 GPM 43,200 8h 54,000 10h C1200 120 ft2 120 GPM 57,600 8h 72,000 10h
What would be a good recommendation for the pump? The pipes are 2" wide now with adapters to 1.5" on pump. Use 2" all along as well on filter?