I am new to the pool ownership world. We just bought a home with an inground pool in Ponca City, Ok. The pool is 28x14 approximately 12,000 gallons. The pool is green and crawling with algae. The filter is a Pentair FNS Plus 36 D E.
30 seconds after I turned on the pump, water started gushing out of the filter. I immediately shut off the filter. I have not touched the pool or filter since. I don't have a clue where to begin.