Hello....Over the weekend I just bought a Dolphin Deluxe 4 from Leslies Pool Store http://www.lesliespool.com/browse/H...-Deluxe-4/D/30100/P/1:100:2000:200020/I/84315 Since this thing operates seperate from the pool pump and filter does anyone have an idea of how long I should run my automatic pool pump timer at night? Does it have to run at all? Right now it's set at 4 hours a night because I used to hook up my old Kreepy Krauly to clean the pool at night for a lower electricity rate. While she's not giving me any grief about the purchase....I'd like try to justify the new Dolphin purchase with my wife with a lower electric bill and other ways if possible! :-D