A friend of mine is looking to have his diesel tanks
cleaned. The only access into the tanks
is the fill neck. He already has a portable 120v filter system that he's going to use to polish his fuel
. I remember seeing once in a magazine of a way to cut a hole into a tank and then sealing it with a new cover that was a little bigger than the hole. It was a plate that would screw into place. Has anyone seen something like this and where we could get them? Thanks.