I have seen some other post with this issue but this is the first time I have had this issue. I have a cartridge filter and in ground pool. We have a lot of dirt and worms on the bottom and when I started vacuming yesterday it worked but after a few minutes it started pumping cloudy dirty water out. I open the filter and cleaned the cartridges but that didn't seem to help. I am baffled as we never had this issue before. So I am thinking I should pump to waste but I am not sure how I could do that. The pump itself and skimmer are on concrete. The only thing I can think of is a the large drain on the container that holds the filter. Can I use that? I would probably have to run a host off of it to the yard. It's a Hayward pump Model c48k2n143b1 with a System :3 Filtration Model# S7M120.. Any suggestion would be appreciated.