I believe this is exactly how the mechanic who cleaned my 345's tank did itWith the variety of mowers around here, I was referring to both steel and plastic tanks. The next tank to be cleaned will be plastic one off my 345.
I guess my plan is to remove the tank from the mower, rinse and scrub and rinse more with a garden hose. Blow dry with compressed air and, a final rinse with some gas/diesel fuel. Use the gas/diesel as a weed killer when done.
Any better idea than this?