Could someone post the "recommended" proportion of Cascade and water?

I've never soaked my cartridges, just hosed them off. And what an ugly job. I could rinse those things for 100 hours and they would still give off dirt. They're like 4 of those big brown Easter Island statues, just sitting there looking at me. And my psi is not that much better after re-installing! I'm obviously willing to try something else.

Peace,
Paul