I was battling a green pool for months and months and now my pool is actually clear and functioning properly. I had all the plumbing replaced and a working backwash valve installed, along with a new grids for the DE filter (and a new pump!! ). It took nearly a week to clear a swampy pool once I had all the proper valves working.
The issue I am having now is the dark stains in the deep end. I have tried brushing with a wire brush, sprinking additional chlorinating granules but am still not seeing much change. When the pool was green, there had been quite a bit of decomposed leaves which became muddy sitting for sometime. The muddy texture at the deep end is what apparently stained the pool.
I am just wondering why it hasn't lifted yet, because now my pool has been clear for 5 days. I think my pool may have even been WORSE last year, until I eventually drained it. The stains were there at the time as well, but lifted quickly once the water and chlorine hit it. SO why now am I struggling????
Any suggestions on how to get those stains up? I am not sure if it could be black algae, it really just appears to be large patches of blackish. The pool is about 8-10 ft deep in that area, so using trichlor tablets to rub out the stains won't work and I am having trouble putting enough force behind the wire brush. Will an algaecide help or just heavy doses of chlorine?
looking forward to your suggestions!! thanks so much!!!!!!!!!!!!