I have a 20K gallon in-ground pool in central FL. I currently use the Pentair intelliChlor (SWG pool). I find that my water pH is always high. Usually around 8.0 by the end of the week, so I dump in a half gallon of muriatic acid or "pH Down".

I an thinking of adding the Pentair IntellipH to monitor and maintain the pH level. The unit injects muriatic acid as needed to keep the water pH at costs around $550.

Has anyone used this device - or something similar?