Hi guys - I just have an honest question, is it really that important to follow the CYA chart recommendations in every circumstance?
I ask because I just got a new to me pool. When I tested the CYA, the level was around 250+ (after 25/75 dilution). I did almost a full drain and fill. Afterwards, I confirmed with two tests my CYA is still around 60-65 (I also stirred up lots of buildup and scrubbed while draining). Based on the chart, I should have minimum 5 FC with target of 8 FC. However, I believe from testing the water initially, and from the way the water was chlorinated previously, that it seems to only have been kept around 3-5 FC or so - with 250+ CYA.
So now that I did the drain and fill, and still have 60 CYA - from a practical standpoint, I understand that ideally CYA would be lower to maintain the pool at 3 FC - but since the pool was apparently running fine all this time at 3-5 FC and 250+ CYA, would it not likely be fine to continue at 3 FC with CYA at 65? I just can’t help but wonder if I am needlessly worrying about keeping my FC at the recommended level of 8, given how long that old water must have been in there. The water was clear and no reported problems from previous tenants when I did the drain and fill. The pool is in the sun most of the day here and doesn’t have leaves etc getting in it much if that matters - thanks for your input
I ask because I just got a new to me pool. When I tested the CYA, the level was around 250+ (after 25/75 dilution). I did almost a full drain and fill. Afterwards, I confirmed with two tests my CYA is still around 60-65 (I also stirred up lots of buildup and scrubbed while draining). Based on the chart, I should have minimum 5 FC with target of 8 FC. However, I believe from testing the water initially, and from the way the water was chlorinated previously, that it seems to only have been kept around 3-5 FC or so - with 250+ CYA.
So now that I did the drain and fill, and still have 60 CYA - from a practical standpoint, I understand that ideally CYA would be lower to maintain the pool at 3 FC - but since the pool was apparently running fine all this time at 3-5 FC and 250+ CYA, would it not likely be fine to continue at 3 FC with CYA at 65? I just can’t help but wonder if I am needlessly worrying about keeping my FC at the recommended level of 8, given how long that old water must have been in there. The water was clear and no reported problems from previous tenants when I did the drain and fill. The pool is in the sun most of the day here and doesn’t have leaves etc getting in it much if that matters - thanks for your input