I will agree with Honda300ex
The nozzle of which he speaks works well, and you do need alot of sand.
I've used mine on 3 restoration jobs.
Of course, you need to have a compressor that will provide 100PSI for a good job. I'd say a 5hp compressor with a 20gal tank at minimum.
The compressor in the link above is similar to mine. It will also work well, but it runs more often than a large tank compressor. I've got a slave tank setup and it helps.
Just my Nickle and Dime. :-D :-D :-D
1984 Tri-Zinger, 1986 KLT 110, 1985 KLT 160, 1985 KLT 250
No QUADS please