We have an 18' round pool. Last year we ended up with either boatman/backswimmers in our pool (Side note when we closed we also had mold in our sand filter). This year we are using CDX as was suggested by our local pool store based on our previous issues. We had not had any issues this year until today. I'm not sure which of the two bugs we have.
Our chemical were tested today and the only thing out of line was the alkalinity. The pool store workers had no idea of what I was talking about or any suggestions. Everything I've read said that I need to add algicide but the pool store told me no.
Our Sanitizer level was 23
pH 6.3( adding alk today)
Any suggestions would be great! Thanks!