For the first time I have setup an 18' 42" above ground pool and decided to go with salt water in it. I bought the Intex CG-54605 saltwater system thinking it will be very easy system to get working. I live in Arizona, where the tap water hardness is very high, and unfortunately I don't have a water softener. After two weeks of of plying with the system I can't get this chlorinator working. The unit always shuts down with error 92 (high salt). The saltiness of water right now measures 3400 ppm (with digital meter), which it should be OK according to the manual. The hardness of water is very high and is around 800 ppm, but I don't think I can control it. The calcium can be easily seen on the cell plates as white deposit. I tried to clean that deposit many times with vinegar and by washing it water. The cell plates appear to be clean. Anyhow, when the chlorinator starts to work for 15 seconds it produces gas bubbles and then shuts down with error 92. Very strangely, I managed to get it to work for 8 hours twice, having even more salty water than right now. At this point I don't know what is causing this system not to work. I read elsewhere that when AC supplying voltage is too high the system passes to high current between the plates, which in turn causes false reading for high salt. The system is for US market, 110 - 120 V. I measured voltage with volt meter and got 122V today. Would this be a problem?
Also, I use a standard paper filter/pump that came with the pool. I think it has enough power to make water flow at minimum required 700 gph (2650 L/h). I read sand filters are better, but I'm not sure if wrong filter type causes an issue with the chlorinator at this time.
Is there anything else I should try?