Hi My name is Pamela BRavo,. I live in Staten Island, NY and this is my second year as a pool owner. We love to entertain our friends and family in our backyard, but this means that we have to keep an eye on the pool water and chemicals (by the way I never passed a QUEM test in HS!) so this is challenging sometimes! I'm done with the pool stores suggestions this year! I m waiting for my TF-100 Test Kit ™ to get a better control of the pool water!