Hello. I was having trouble with some algae which i quickly fuixed by shock but when it came back I noticed my hayward CL220 off-line feeder may be plugged. It appears the water is coming in through the round tube inside at the outlet side. I'm going to clean it out but would like to get some info. Inside there are is an inlet and outlet location for water to flow through. Is the inlet water supposed to come in by the control knob? I may have a stuck ball check. Unfortunately my pool guy ( not direspect meant) originally had this thing installed totally wrong.
Any info would help.
Thanks a lot.