Hi, I need some help to verify whether this is possible or not. I am working on a project that still in early phase of development. The idea is to create a water filter system to in a barrel as rolling it. Basically the barrel will contain 4 panels placed inside the barrel creating a shape of (+) sign in the barrel. The panels will contain activated carbon to filter the water and a mesh of 1mm holes. Let's say the barrel can carry 20gal of water. Is it possible to filter the water by rolling it for a 2 hrs duration using this concept? If not what would you suggest? Note that there will be a gap right in the middle of the 4 panels. So they are not connected.