Hi

I'm at a loss of what to do with my pool. We opened it up last weekend after buying a new pump and things were moving along and the green swamp was clearing up. The pool has a white sort of slimy substance floating on the pools surface. We have shocked it and added algaecide and the water is somewhat clear. We have been running the filter for days now and shocking for days and this substance won't go away. I was going to try adding some floc but the issue with that is my pool has a cartridge filter and I have no idea how or if we even can vacuum it to waste. I have a picture of the substance if anyone is interested in seeing it.

Thanks for any input!