It's hard for me to see my husband cleaning the peebles of our pumps aquirium. He do it differently compare to my style. He clean it one by one imagine thousands of pcs of peebles cleaning 1 by 1. lol. So i teach him how to do it. I told him that if he you can put it in the basin and put water then rub it together. Maybe it could be faster than his method hehe... Anyway that was his style different to mine.