Recent content by Ffg

That’s what I was thinking to be honest but I haven’t heard seen or smelt any fires. How would I go about cleaning it? I kept trying to scoop it out but it just felt like it kept coming lol

Hi! We opened our pool (it’s maybe 40 years old, chlorine, concrete pool). We cleaned it got all the chemicals and balanced it. Everything was going great and then all of a sudden (we hadn’t been using it because we got a few cold days) we notice this black substance (see photos) floating on top...