For the past 6 years, we have closed our pool ourselves in the winter. Whenever we have closed the pool ourselves, we open it in the spring to little or no algae, mostly just dead worms and some dirt on the bottom of the pool. Last fall we decided to have Buster Crabbe close it as it is getting harder for us to do physically. We questioned them at the time about the amount of chemicals they put in as it didn't seem to us to be enough. They assured us that it was. We opened the pool yesterday to find water that was so green with algae that it is almost black! When we called BC to see if they would make it right, especially since we had told them they weren't using enough chemicals, they basically said tough luck-not our problem. WE WILL NEVER HAVE THEM DO ANY POOL WORK FOR US AGAIN. They made it very clear that they didn't care about losing a customer. Good luck to you if you use them! read more