Aug 24 2012· In wet blasting most introduce the water at the nozzel Moister in your blasting system is a night mare sand clumps and clogs I have to ask what you plan on blasting sand blasting is dusty and sand goes every were but is easly blow vacumed up now that you add water to the mess the dust goes down but the mess goes up now your dealing with sludge and water runing were ever gravity takes it