I have been charged with the dubious honor of automating the sanitizer on our small comercial pool. We are located in Guatemala so rules and code are pretty much out the window, but we still like to do things (sort of) properly.
The pool is located within the grounds of a hostel for backpackers and the pool features a swim up bar (hence the need strong sanitization hardware)
I have estimated a bather load of 245 person hours a day over 7am til 7pm and it is a 33,000 gal pool. If we were to have a party that would increase to 400p/h est but this would not happen more than 3-4 times a year.
In order for me to automate the chlorine demand I have been looking at a ppm and ph module made by chemtrol that reads accurate? FC levels and has a relay output for swg or chemical feed. And one feed for ph adjustment. The literature says that the probe is not affected by the cya level but suggests a cya level.
In another post I read about typical chlorine demand per bather hour in a well vs poorly managed pool and have come to the unfortunate conclusion that due to the age range and the addition of a bar in the pool, a lot of them are not going to leave the pool to pee, I am going to need enough punch in the swgs to handle that when necessary.
Another question I now have is after putting some info into the pool calc and the effect of chorine gas on pH. It lowers it so if that is the case the pH would need to be raised by the 2nd chemical feeder, is this correct?
Any help is appreciated,