Im putting up a 24' round ABG pool and need help picking a filter. I have a pentair dynamo 1HP pump. I use to have sand filter but was old and leaked from spider gasket,baskwash port, and gauge did not work. I was going to replace the sand filter with another sand filter and valve. I know I can just replace the spider gasket to get it to stop leaking but previous owner over tighten the gauge and cracked the housing. I started looking into cartridge filters and I know they both have good and bads but what would be a good size to go with for cartridge. Pentair CC75, or CC100. Anyother comments are welcome to. Thanks.