PPM --- How do I figure IT

[Watermom]

The numbers on your test kit 2, 3, are ppm (parts per million). Your kit says 'ideal' but it is not always ideal. I'm assuming your pool water analysis came from a pool store. Even many pool stores do not 'get' the connection between CYA and chlorine levels and that is why there are so many pools full of algae because people with high CYA go with the 'ideal' of 2-3. Plus, people with algae-filled pools are money-makers for pool stores!

Most kits will not go above 5 as you noted. That is why we recommend the Taylor K-2006 or 2006C as it will go higher. (I think up to 50 but I'm not sure if that is right.) It depends on your CYA level. It is a big misconception that pools should always be at 1-3 or whatever.

I'm gonna link a thread that Ben wrote this morning that might help you understand this better. If not, come back with more questions. That is why we are here. Don't hesitate to ask again if we aren't making it clear to you.

EDIT: (Read post #23 in the following link.) http://www.poolforum.com/pf2/showthr...inyl-in-ground