Hi, This is my 3rd year with this pool and been fighting algae for a few weeks. I have a 21 ft round AGP, with a haywood 1.5 hp pump and Swimpro cartridge filter.
I shock the pool with liquid chlorine and it clears up, but then I get what looks like dirt or dead algae on the bootom. I am contantly cleaning the filter and it is coated with green stuff everytime.
My readings with my Taylor test kit, are.
I don't know if my cartridge filter is bad and dumping stuff back in, or I have mustard algae.
I vacuumed yesterday and now I got cloudy, greenish tinted water.
I never had a problem like this before and would like to know wht to do.