Good day all,
Can you please tell me if a safe swimming range for FC would be between 4-12ppm? Here is the reason I ask...
The pool store tells me my CYA is at 80. My (inexperienced) testing with TFT-100 shows CYA in the 35-50 range and DEFINATELY NOT 80. I shocked the pool a few weeks back to a level of about FC 36 (for 2 days) and have kept it no lower than 6 or 7. I've been using on average 1.5 bottles of 121 oz 8.25% bleach every day. I hope this is a normal rate for my pool. The water looks crystal clear. My only issue is what I believe to be metal related yellow on deep bottom end of pool (by the way, I don't have a lot of metal in the pool but it has been like this since I opened it a couple months back). I continue to brush the pool and added only 1 gallon of Natural Chemistry Instant Water Conditioner when I first opened the pool. I suspect a safe swimming FC range would be 4-12 based on the Chlorine/CYA chart. Any thoughts? Thank you.
Can you please tell me if a safe swimming range for FC would be between 4-12ppm? Here is the reason I ask...
The pool store tells me my CYA is at 80. My (inexperienced) testing with TFT-100 shows CYA in the 35-50 range and DEFINATELY NOT 80. I shocked the pool a few weeks back to a level of about FC 36 (for 2 days) and have kept it no lower than 6 or 7. I've been using on average 1.5 bottles of 121 oz 8.25% bleach every day. I hope this is a normal rate for my pool. The water looks crystal clear. My only issue is what I believe to be metal related yellow on deep bottom end of pool (by the way, I don't have a lot of metal in the pool but it has been like this since I opened it a couple months back). I continue to brush the pool and added only 1 gallon of Natural Chemistry Instant Water Conditioner when I first opened the pool. I suspect a safe swimming FC range would be 4-12 based on the Chlorine/CYA chart. Any thoughts? Thank you.