Doheny's 5-in-1 Value Test Strips are a great buy. Each bottle contains 50 test strips that test for: Total Chlorine, Free Chlorine, pH, Total Alkalinity, and Total Hardness.
Simply dip a test strip in your water for 5 seconds, let it sit for 10 seconds, and compare your reading to the color chart on the bottle.
Doheny's 5-in-1 Value Test Strips
