After struggling for years with my pool's water chemistry a friend recommended Guardian Pool Chemical. They come weekly to chemically treat the water. My pool has been blue and algae free since hiring Guardian. I do the regular cleaning of the pool. It has also reduced my cleaning maintenence substantially.

Not very well operated. Advertised that they would provide DE and other chemicals to maintain the pool. After a year and 3 separate requests, we had to call daily to get anyone to bring the DE. Found out that a stain on the plaster was caused by too much iron in the water, one year after the tech told us it was a stain and could only be removed by replacing the plaster. We had to call the boss to get the water checked for metals. Two weeks later and we are still waiting for the chemicals to treat the stain. I would not recommend.