Jim is a very nice, personable man. I enjoyed chatting with him. He started working on my pool right after it was built in the summer of 2012. It is a chlorine free pool, which Jim is not familiar with and never became familiar with. When a problem arose in the pool, he blamed it on the UV Light system. After I did my own investigating, I found this to be not true. The main, "deal breaker" problem was the yellow algae which grew in the pool for 3 months. Even though the UV company explained the simple process to get rid of the algae, Jim couldn't get it out of the pool. He finally started using very heavy doses of chlorine and algae killer, to no avail. The more I studied the problem the more I realized there was something amiss with Jim's process. First of all, the pool was never properly brushed. I would go outside after he serviced the pool and the steps were still full of debris, as well as the algae still clinging to the wall. Finally, after conversations and trying to get Jim to do I better job, I hired a new contractor. The new company did a thorough brushing using elbow grease. Then we opened the filter system and found the true root of the continual problem. Jim had never cleaned the filters. This was apparent by the great deal of new pool debris..plaster and paint bits. And the filter was coated in yellow algae, which of course would be dumped right back into the pool. It was also coated with clarifier, which was not suppose to be part of the plan. I had to pay for 4 new filters, way ahead of their expected life span.