Lessons I've learned when sandblasting: (1) Use sand intended for sandblasting. Don't use the "sandbox sand" you can get at Home Depot. I buy "sand" (actually it's coal slag) from a sandblasting place that is the consistency of sugar. It leaves a nice finish and doesn't clog your blaster. (2) Clean the grease and oil from the object you are blasting. You'll waste a lot of sand blasting off accumlated grime. Take the part to a car wash and get all the greasy gunk off of it. (3) Buy a sheet of 1/8" plexiglass and make yourself a lot of new face shields. Face shields get hazy real quick and you can't see what you are doing. (4) You're gonna beat up your compressor. Put a box fan next to the compressor to help keep it cool. (5) Experiment with different air pressures and sand flow. I use about 60-80 PSI. (6) I don't recover my sand. I just set up in the back yard and let it go. Sand is cheap and it gets full of the junk you just blasted off. (7) "Wet" air is the enemy. It will clog your blaster and you will have to disassemble the mixing valve to clear it. I made a water separator out of a big ice chest filled with ice water, an extra 50' of air hose, and a big U-shaped pipe with air hose quick-connects on each end. Immerse the pipe and the 50' of air hose in the ice water. The moisture in the air will condense in the hose and get trapped in the U-shaped pipe. In Houston my system gets wet and clogs after about 30 minutes of blasting if I don't use this homemade water separator. I tried the inline water separators and they did not work very well. (8) After blasting a part, blow off the excess sand, wipe it with lacquer thinner, and paint it. You will be shocked at how much bare metal will rust in 24 hours. All that said, you are going to love that blaster. It has saved me innumerable hours of work and it leaves a great, rust-free finish.