Thank you so much AnnaK! While I'm waiting on my Taylor kit to come in I've relied on the HTH test kit (not strips) from WalMart and comparing those results with 'professional' tests at the pool store. They have the funniest confused look on their faces when I tell them I'm using the BBB method , but they have learned not to pressure me to buy their chemicals. I only buy equipment at the pool store now, but they still test my water for me and tell me to "do whatever that method calls for." Thanks again for all your information; Southeast Texas gets a little warm this time of year and I'm ready to JUMP IN!!!