Hello everyone. I purchased my pool home in the summer of 2018. I fired the pool company I had hired to service my pool this summer. I then purchased a taylor k-2006 test kit and immediately felt overwhelmed. An acquaintance suggested that I take a CPO online course. The CPO course helped but it seems like too much for the average residential pool owner. I have recently drained and filled my pool with new water and I am getting the hang of pool maintenance. I wish I would of found this website and forum earlier.