New member from AZ with CYA high


Jul 22, 2020
Phoenix, AZ
I am a pool owner for 5 years. It is not easy to get all chemistry right, so I used two companies to maintain my pool. However, they just came once a week for a very short time, and I feel I still need to do work myself. After seeing algae growth last month, I stopped the service of the 2nd company and started to maintain myself. My experience was just to make chlorine and pH right. However, I mistakenly shocked my pool using dichlor. Then it became clear, but suddenly algae grew back since last Sunday. I am glad I found this site and realized my mistake. I have partially drained my pool to lower CYA to ~ 80, then SLAMing it with bleach. The water is blue now, and I am glad to see from here that it is safe to swim even with 30 ppm of FC. (I am not sure if my kids swam or not today). I have purchased my TFTestKits, and will do the overnight loss and CC test


Gold Supporter
Silver Supporter
TFP Guide
Mar 25, 2018
Chandler Arizona
Yup, that’s the vicious circle pool owners deal with when having a pool service company.
Once you have your test kit, post up a full set of results. :cheers: