Hi,
We have a new pool that the tester at Leslie's says has high phosphates.

A week ago I was told they are about 500 and to put in a PhosFree chemical that they sold me for $32 a gallon (yikes) and to put in about half. I did and went back and was told that they are still about 500 and that it should be 100

So, is this a problem?

My water has the following characteristics:

Chlorine 5.2 (I think that is free CL? Don't remember)
PH 7.6, but this seems to rise quickly as in about a half gallon of acid a week?
CYA 50
If I remember right, the Alk is about 140 - well something was 140

The pool is a less than 2 month old dark plaster pool, about 20K gallons with a salt system on it.

Thanks,

Chris