Have spent weeks trying to get my chlorine levels up in my saltwater pool. Cell is ~5 yrs old. Had very minimal scale but cleaned in muriatic acid mix. No error codes showing. Chlorine production set at 50% then 60% . Still no chlorine in the pool. Have tried Boost 3 or 4 times in the last week but still have the same issue. I cleaned the cord contacts after 120 code came on during one of my attempts (some yellow gunk came out - likely from the WD40 I sprayed during an earlier attempt). Help - I am having to shock the pool every other day