I use to have a Nautilus 48 DE filter but it started to corrode when I went to a SWG. So I replaced it with a Hayward DE 48 (4820). My old Nautilus use to get pressure around 20 psi and I would backwash at 30 psi. This filter goes up to about 30 psi immediately and will go up to 40 psi after about 30 minutes. If I backwash, it will go back to 30 but then 40psi 30 minutes later.
This has slowed my flow rate down considerably to the point the SWG no flow light comes on. Now I also changed my valve to a Hayward SelectaFlo multiport valve. It is a 2' line to the pump where I use to use 1.5' with the old valve. The return pipe is now 2' instead of 1.5" but only about 4 feet.
I have a Challenger 1.5 HP pacfab pump for a 30,000 gallon pool. Is the new DE48 filter too small? is my pump too big or too small? I'm confused what's the problem.
One other thing is that if I don't run through the filter and return directly to the pool, the flow is good to the pool. It's only when I go through the pump where the flow slows down and not much circulation in the pool.???
This has slowed my flow rate down considerably to the point the SWG no flow light comes on. Now I also changed my valve to a Hayward SelectaFlo multiport valve. It is a 2' line to the pump where I use to use 1.5' with the old valve. The return pipe is now 2' instead of 1.5" but only about 4 feet.
I have a Challenger 1.5 HP pacfab pump for a 30,000 gallon pool. Is the new DE48 filter too small? is my pump too big or too small? I'm confused what's the problem.
One other thing is that if I don't run through the filter and return directly to the pool, the flow is good to the pool. It's only when I go through the pump where the flow slows down and not much circulation in the pool.???