hi all first post!.about 2 maybe 3 weeks ago we purchased a brand new hot springs limelight beam, the installers set us up with all the chemicals(leisure time). I've kinda struggled with keeping the chlorine levels up, I check it every day , and add more chlorine granules, check it and it's ok, but it seems like it falls out fast..about 1 week ago, I've been noticing this white substance sticking to the sides. I've brushed it off, added some spa defender and chlorine to get the levels up. from the research I've been doing , it seems to be white mold? am I already going to have to drain the tub to sanitize..this is frustrating right off the start..thanks