Unfortunately I tried Pool Masters for 2 months because they came over the same day when I called them from a craigslist ad (this should have been my first clue.) I have a brand new pool so it shouldn't be that difficult to keep care of. After all, all the equipment is new, the water is new and the whole pool is new. But for some reason, the guy they kept sending out found a way to mess up the programming on my new equipment to where it would drain the hot tub every night and run the prime out of the pump every day. After calling for about a week, one of the owners finally decided to come by himself and fix that issue. Then, they kept saying they would clean my filter but in two months they never followed through to do what they promised. Lastly, they never returned the key to my gate (promised to mail it to me - ha!), so now I am searching for a new pool company that wants to do business with integrity and someone who actually knows how to clean a filter.