We had an issue when this starter kit came to us. Some of the tops had come off and chemicals were everywhere. I called wayfair and they quickly sent me a whole new kit free of charge. The directions are very detailed which is good but the directions required me to use a chemical called "Alkalinity Up" which was not included in my kit. Depending on your water, you may not need to use this chemical but the directions said that I did, according to my test strips, but this kit did not come with it.