I use a shop vac or air compressor. In my garage shop vac, outside air compressor. About twice a year. I don't think I've ever washed it. I keep it clean on the inside with oil, air filter, blades and hydro fluid.
I'm not one for a shiny mower.
I've learned that people will forget what you said, people will forget what you did, but people will never forget how you made them feel. Maya Angelou
Gravely ZT HD 60" 24hp Kaw.
Ingersoll 3014 44' deck, 38" Snow Blower
Old Troy Build Horse Tiller
Husky Snow Blower 24" 6hp
Not Enough Barn