fuel tank cleaning service?

[Flygaff]

There was some water in the fuel. also some dirt, but most of the stuff came out when the tank was pressure washed. Paper, bottle caps from fuel additive, and about a bucket full of goo from the walls of the aluminum tank. The tank is a 1996. I am not the original owner, I bought the problems. I have had problems for a year trying to get everything running right. All fixed