Update: I am still running my VS Pentair pump 10 hours a day....7 hours at 1750rpm and 3 hours at 2750rpm. My Intelchlor 40 SWG is pumping out plenty of chlorine running at 60%. I am considering cutting back on the pump runtime to save even more energy. With the VS pump I am now down about 40% from the energy useage of the single speed pump I used to have. Comments?