I'm losing water through the backwash hose even if the handle is on filter. There is also a little bit of water around the handle. I'm thinking, I may need to change the gasket of the filter. If my model of filter can be changed. I've never done this. So I really need step by step instructions please. Thank you
15 feet round, above ground pool, sand filter (jacuzzi L 192c-7c) with hayward motor
15 feet round, above ground pool, sand filter (jacuzzi L 192c-7c) with hayward motor