Hi, new to group. I have a 5500 gallon vinyl pool that I'm trying to get crystal clear again. Filter clogged for a few days and I did'nt know it. got a lot of green algae. Keeping cholorine high and ph good and used algacide, clarifier, shock as per my pool store. Water got better, just cloudy now.The filter is just a single cartridge that has to be cleaned several times a day, but don't know how to get that crystal clear water again. LIve in OK, where it is still in the 90's and a lot of sun.