I am trying to get the feel for my new to me pool, and filter setup.
The pool is a 27' Round AG, with a Hayward 210 Sandfilter that takes 200 pounds of sand and has a decent size one speed pump (I think that the filter and pump were designed as a combined unit).
The cover fell in with all of the ice and snow we had this winter, and the pool was completely filled with leaves and gunk. I was slow to get to the pool this spring and it turned into a swamp.
I have spend the past week and a half shocking and following the BBB methods as best as possible. The algae is getting under control but I had a clouding problem that I couldn't get a handle on until I gave in and used a bottle of clarifyer yesterday. Now I can finally see the bottom.
Honestly I feel like I would have never had the pool clear if it wasn't for the clarifyer!
What pressure should I expect the filter to range around? It is running just a few PSI under 40, which seems high because the max PSI on the label is 50! According to the Hayward website it is also short cycling, I have to backwash pretty frequently.
I also have been having difficulty adding some DE to help clear up the pool. There is a very small range where my PSI can go up before the flow from the return goes down big time, maybe 3 or 4 psi max. Even a small amount of DE seems to put me in this range and I have to backflush.
I think the sand in the filter is 3+ years, could that contribute to the delay in clearing the pool?
I am new to sand filters, and pools in general, so any information you could share would be very helpful. Thank you!