We had the fuel tanks on our 1984 GB 42 cleaned by PetroClean from Blaine, WA. ( 360 734 1600) Devon, the owner arrived on time, fully equipped to do the job, very professional and competent.
They pumped out the tanks, opened inspection plates, cleaned the tanks well and inspected inside and out, installed new sight gages, valves and set me up for a future fuel polishing system. Then they refiltered the fuel and pumped it back into clean tanks. Devon and crew were careful, clean and efficient. No wasted motion and no spilled fuel.
Price was as quoted and fair. Exceptional service. Highly Recommended.