Just had a pool installed this past spring and completed our first pool season. At the recommendation of the builder, we had a single speed pump installed. It is a Hayward Superpump and from what I have come to realize, not very energy efficient. After seeing how much my electric bill went up for this last pool season, I am wondering if I may be better off replacing this pump with a Variable Speed pump. My main worry is if a variable speed pump will be able to chlorinate my pool adequately at the lower RPM's in order to provide actual savings. Would also appreciate some thoughts on which model(s) to look at. I would prefer to stay with Hayward as I have the Hayward Omnilogic Automation system.