We had Casey over to fix some pool issues last summer and reluctantly agreed to do his pool school. It has turned out to be the best choice we've made in maintaining out pool over the past 12 years. He taught us to manage our own pool chemicals and balance the water to be less harsh. He's also done several minor pool repairs since last summer and has proven to be dependable and thorough. I know that I can trust him to do the job well- and that I won't be charged for things I don't need. I highly recommend him!