Hi, I need to buy a new filter/pump and I saw this in a catolgue by "in the Swim". It is a Jacuzzi sherlok with a Cartridge filter and 1 1/2 hp ,2 speed slr series Pump. Model # E2745 for $539.99 and free shipping. Anyone have any experience with this brand or company? I would like to get away from the maint.of DE and have no problem hosing the filter down now and then. Also like the idea of saving money by running on low speed when not vacuuming or using solar. I have a 18x33 4' above ground pool. Thanks