Recent content by Pietecasius

Not trying to maintain a low CYA level, that happened to be the level the day after the pool was filled and the builder threw in three bags of shock.

Mknauss, why is a CYA result of 2 not possible? As the chemical is added to the water feom 0 ppm it will be 2 ppm at some point. If you are referring to the resolution of a particular test method, I own and use a Pool Lab 1.0 photometer to test my water. Pool store test results matched my...

Thanks Everyone. I have read pool school. Im fairly well versed on pool care, just new to the app, and SWCG. I didnt realize the app was auto setting the FC range off of the actual CYA test. CYA reading of 2 is correct. I am in the process of raising the CYA on a new pool fill. Sounds like FC...

How do i change the Free Chlorine range in the pool math app? It is set for 1-3ppm, and based on a Salt pool with a target CYA of 70, my range should be 3-5 (according to TFP CYA/FC chart) I can’t figure out how to change the range in the app. Thanks in advance for any help!