Background - new house/pool so trying to get a handle on chemistry. been here 3 months. Current testing
35,000 pool
FC - 4.9
TC - 4.9
PH - 7.9
TA 84
CH - 216
CA - 34 (it just rained like heck for 3 days so its a little low)
Phosphates 2100 Was as high as 2900ppb
I have tried two different types of phosphate remover. A residential Phosfree and a Commercial grade. Here is my story in summary.
Residential Phosfree called for 3 gal. adding 1 liter at a time. My issue was my pump pressure would rise from 20 to 25 in a few hours and then climb to 30 in another couple of hours. I have completely stripped and cleaned the filters and repeated the process and felt that decreasing the phosphates 100-150ppb at a time is a losing and costly battle. I did a total of 3 maybe four rounds and said, I'm done with this.
Round 2 - perhaps something a little stronger (like what you might treat commercial pools or ponds) would be more effective. The commercial grade made by Natural Chemistry called for 12 oz based on their website. I have completed 2 rounds of this backwashing filters between and seen very little reduction in phosphates....again a couple 100ppb maybe.
Any suggestions?
35,000 pool
FC - 4.9
TC - 4.9
PH - 7.9
TA 84
CH - 216
CA - 34 (it just rained like heck for 3 days so its a little low)
Phosphates 2100 Was as high as 2900ppb
I have tried two different types of phosphate remover. A residential Phosfree and a Commercial grade. Here is my story in summary.
Residential Phosfree called for 3 gal. adding 1 liter at a time. My issue was my pump pressure would rise from 20 to 25 in a few hours and then climb to 30 in another couple of hours. I have completely stripped and cleaned the filters and repeated the process and felt that decreasing the phosphates 100-150ppb at a time is a losing and costly battle. I did a total of 3 maybe four rounds and said, I'm done with this.
Round 2 - perhaps something a little stronger (like what you might treat commercial pools or ponds) would be more effective. The commercial grade made by Natural Chemistry called for 12 oz based on their website. I have completed 2 rounds of this backwashing filters between and seen very little reduction in phosphates....again a couple 100ppb maybe.
Any suggestions?
Last edited by a moderator: