Quote Originally Posted by VickiP View Post
CH ??? dont see it on the list what is it ....
Total Hardness 100
CH means calcium hardness, which doesn't apply to a vinyl pool, as long as it's not over 300 or so. Yours is fine, despite what the pool store will tell you....just don't buy anything else from them and stick with what Watermom and Mbar are telling you. They've helped clear up more pool problems in a week or two than you'll see in a lifetime, and Mbar is THE resident expert on metal problems (besides Ben, of course)!!

Janet