CarlD,
Thanks for your reply. I am at a track meet today with one of the kiddos so I'm not certain which kit I have but that doesn't sound familiar and I've done all the tests my kit allows 3 times so far. I'll double check when I get home. I have been reading that forum alot and have learned alot but it's still somewhat of a foreign language to me. I'll keep reading. I am on the verge of giving up and am nearly to the point of regretting buying a home with a pool. I hope I can catch on quickly... wish me luck.