I have a Rainbow 320 inline chlorinator on my 14,000 gallon in ground pool with a ozonator. The pool and equipment was installed in 2009. The 320 seems to be working properly; water drains when opens, fills when turned on and the tablets are dissolving etc, but no matter how high I set the feed dial the chlorine is always low. Could there be something plugged that needs servicing?

Question

Lennox H. · Accepted Answer

Hi Pat, A few things that you can check: (1) the Screen on the bottom of the unit (2) the Check Valve. You can also try pouring hot water down the chlorinator, that can clear the lines of any blockage due to chlorine build up.

Question Regarding: Pentair Rainbow 320 Automatic In-Line Chlorine & Bromine Feeder - R171096