Hey everyone this is my first post on MFK. Looking for a little advice. Im not very familiar with the mechanics of a canister filters, but one of my Jebo filters rattle. So, i took out the propeller and cleanned it a littlebit, and noticed a small black rubber ball had come from somewhere i didnt see. Now i dont know where to put it. It also may have came out of the inside of the filter motor because i unscrewed it thinking thats how i got to the propeller, and later found out it wasnt. Also anyone know what causes canister filters to rattle, and blow air out the outake? Thanks!