Hi guys, this is my first post, been reading the forums for a few months and have received tons of useful information. Thank you!
Here's my question - I have an indoor pool, about 7800 gallons (22x11). I use a solar cover to cut humidity in half, and to reduce evaporation and retain heat. Works well. But, I do succumb to evaporation, no real way around that.
I had my plumber install a 24v sprinkler valve. I have several check valves in place. I just want to make sure that I'm safe that no pool water will get back into the home line (don't want to drink chlorinated salt water!)
Here's the plumbing:
Skimmer -> Pump -> Pool filter -> Intellichlor IC20 -> Ozone Generator -> Pool heater -> Check value -> return outlet
The water is being added like this:
Water supply -> brass check value -> Anti-siphon solenoid value -> pvc check value -> pvc piping tee-d right after check value leaving the pool heater.
Initially, the water pressure from the pool was forcing water out of the sprinkler valve (Rainbird) diaphragm so I replaced the diaphragm with a solid cap.
Everything works perfectly, the solenoid kicks on, water fills pool. Solenoid is turned off, a sound of a click on the sprinkler value indicates water shut off. I believe this ok, I'm unable to install a dedicated water line as the pool is indoor and set in solid concrete. I'm concerned I should replace the sprinkler valve with something more industrial, like a simple brass solenoid value. Again, I just don't want pool water entering my main water supply to the house.
Any feedback, comments or suggestions are welcomed.
Thanks again everyone,