I have a large intex pool, 16x32x54 and the intex pump just isn’t sufficient for moving the water and keeping it clean even with the biggest pump intex makes. Someone gave me a 325 sq ft cartridge filter but I need to get a pump for it. When I started shopping around for a pump, at least 1.5 hp the description it says the pump is not for a soft sided pools like intex. Can anyone explain to me why the company says this.