A friend told me about TFP so I am trying it out. I have a divided Swim (2050 gal) / Hot Spa (275 gal) that both have Master Spa Ecopure Copper Filter, UV, and Ozone (mast3rpur). I want to better manage sanitizing using this app. One thing I do notice is there is no selection for using a non-cholorine shock oxidizer in the app.... would be a nice add to see how Potassium Peroxymonosulfate affects water chemistry. It will be fun to explore this site. Thx.