This is the tool of the week. I use this to clean out the sand in the floor supports. I've tried different sized tubing and after trial and error, this is the biggest you can use and still get in there. It will go half way in the rocker panels, so it works pretty good. The tygon tubing on the end is 3/16" i.d., 9/32" o.d., 24 inches long. Then there is another 14 inches to the end of it. I used 5/16" i.d. quick-disconnect on all of my tools, spray guns included.
Same picture as above. Taped to number 9 wire to reach inside the trunk, by the back seat, etc. You will have to take the number 9 wire back off to get inside the floor supports and rockers.
My compressor pumps up to 175 lbs. so I turn my regulators all the way up around 160 or so, if you try to blow this stuff out with 90 lbs. of pressure, it will be a lot harder to do.
I wanted to show you a picture of me in supplied air. I have a lot of sand all over in there right now so I'm using the supplied air until I get it back on the rotisserie, and the paint room door bolted back up.
I want to bring this up again, my booth has negative pressure, so once I put the door on and go in with the supplied air to blow the sand out of the panels the rest of the shop will have clean air.
I've tried to blow these out before and hold the vacuum at the same time and I'd had enough so I built this jig. I can't bring the bride in to hold the vacuum because I only have one supplied air connection. This is the bride...don't let him fool you, I wouldn't go in there on a bet.