I have been using the TFP methodology for several weeks and the water has been super clear. I rely heavily on the CYA chart to determine where to keep my available chlorine levels. My test from a few weeks ago showed CYA at 50 so I was targeting FC of around 6ppm. My most recent test shows CYA has dropped to 40 so I am now targeting 5ppm. I have talked to my pool builder and a couple of people at work who seem to be knowledgeable about pools. All of them are telling me that FC should always be around 1-3ppm and it is not safe to swim with FC above those levels. I also have a vinyl liner pool (which is only two months old) and they are telling me that keeping FC higher than 3 will deteriorate the liner and it will need to be replaced much sooner. I know the TFP method has been very successful for years and years so I was hoping to get some guidance on the safety of swimming with FC above 3ppm and if I should expect my liner to be replaced much sooner.
Concerned about CYA level and Chlorine Recommendation
- Thread starter dkite22
- Start date
- Mar 24, 2014
- 2,455
- Pool Size
- 32000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- CircuPool SJ-55
I am not shocked pool builders and coworkers are not aware of the CYA/chlorine relationship. The chart is proven science and keeping your FC between the minimum and SLAM level will not ruin your liner, equipment or swim trunks.
The CYA also acts as a buffer to the harshness of chlorine. If you want to look a bit more into it check this out Certified Pool Operator (CPO) training- What is not Taught
Appreciate the responses and I feel better about the safety and quality of the pool.