TIA and I know this has come up regularly and I did try to search but I currently have a Pentair Dynamo 1 1/2 HP pump thats leaking at the seal and have changed the seals twice so far. It works but starts to leak after a couple months. I have a 300 lb sand filter and was wondering what would be the beat pump to buy since things have changed since 2011 when I bought this one. I have it hooked up 220v. Lady at Leslies pool suggested a Pentair Super Pump and they have 20% off today. Price was $720 and like $576 with discount but want to make sure I get a good pump for my needs. I run 4 hours in day and 4 hours at night. Thanks