[Phil]

I have one, use it with my 2500 pressure washer. I blasted the chassis on the 34 cabriolet I am restoring. It works pretty well a more powerful pressure washer would work better.
The sand has to very clean. If it has a larger chunk it will clog the nozzle and force water pressure back up the sand hose and yes,you will have wet cpogged sand in the sand hose.