Re: My Homemade Sandblasting Pressure Pot
Shopping List:
Most everything came from Home Depot, but nothing except the Sandblast valve is special.
1 - 20lb Propane Tank
3 - 3/8" ball valves
1 - 3/4" Ball Valve (sand filler)
1 - Sandblast Valve/Nozzle, the inlet was 3/8" yours may be different, mine unit came from Princess Auto, but Harbour Freight has them as well
- A length of 1/2" Reinforced water line, from the tank bottom to the sandblast nozzle, originally I used 3/8" but it kept plugging and rather dramatically burst. After that I changed to 1/2" line and it all worked fine. Keep an eye on the line, the sand erodes it and eventually it will burst.
- Length of 3/8" Reinforced water line, just a short length is needed, if you switch to 1/2" on this line it would be fine and you would only need one
diameter of line.
1 - 3/4" pipe tee, for the top, check the diameter of the large hole in your tank, it may be larger, if so all of the 3/4" fittings should be changed to the appropriate size.
2 - 3/4" close pipe nipples, for the top
1 - 3/4" to 3/8" pipe reducer, for the 3/4 tee to 3/8" tee
2 - 3/8" pipe tees
3 - 3/8" Close pipe nipples
1 - 3/8" pipe nipple 3" or 4", basically that long for clearance for the valve handle.
1 - 3/8" Pipe Coupler, welded into a hole in the bottom of the tank.
2 - 3/8" Pipe to 3/8" hose barb
1 - 3/8" to 1/4" reducer (for air inlet)
1 - 1/4" Air line inlet (male)
1 - Air pressure gauge or relief valve
- whole bunch of 1/2" conduit (for me around 109")
2 - lawn mower wheels
2 - 3/8" to 1/2" hose barbs (one sized for the Sandblast Valve/Nozzle)
1 - 3/4" hose barb for the top fill valve as well as a large funnel (not mandatory)
- Threaded rod for an axle for the wheels.
Hopefully this gives somebody some ideas.
Ron
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