Thought I say hello and intro my self, I'm Brian and I just bought a house with an in ground 25000 gallon pool, and a in ground spa. I've been lurking on here learning as much as I can in the little time that I've acquired This pool and learned alot. I'm currently battling with green alge coupled with a very high cya level 200! Thing is, "I'M IN CALIFORNIA" one word, "drought" uh few words, "water restrictions and big fines" No partial drains! Anyway. .... I'm here I'm learning and thanks to everyone contributing To this site.