Help, I've been constantly been battling alge forming and zero chlorine. I have been checking the following things. pool pump is running good. cartridge filter is running good although I am having to clean to often as its getting blocked. The Rainbow c320 is in good working condition. water flows in and out. the o-ring is in good condition. its air tight. I have been in addition to using the rainbow chlorinator been using a floater too as a extra test to see rainbow chlorinator is not working. The pool store doesn't know what the issue is either.
Pentair Variable speed pump, Hayward C17502 Star-Clear Plus 175-Square-Foot Cartridge Filter, Rainbow c320, plaster, 15,000, British-Texan!