My EC65 DE filter has had leaks repaired many times in 2 years so I need to replace. My pool is 17,500 gallons and I have a Hayward VSP 1.65 HP. I love running it at 3450 rpm- I like the water movement and clean water. I wanted to get a cartridge filter. I think my DE filter at 27 ft is undersized, so I want to oversize my cartridge filter. I’m reading cartridge filters require slow pump speeds. How slow? Can we run a 1.65 HP at 3450 rpm? I was reading I should get a 300-409 sr cartridge filter so am looking at Hayward c4030 which is 425 sf