chalky

I just recently moved into a home with a fiberglass pool and have been learning to maintain the pool levels but something I've been struggling with is what feels like a white powder on the walls and bottom. The powder feels chalky and smooth on the walls and it can be rubbed off by hand and...

I have a 25 year old 13x32 white fiberglass pool. Every year my floor and sidewalls have the chalky substance. Water is crystal clear until swimmers get in and stir the floor up. A few months into the swim season and backwashing several times (water looks like milk when backwashing!). It’s not...