Blasting Cabinet Metering Valve

Correction... I used either a 5/8 or 1/2 id feed hose but couldn't find an appropriate nipple so I made one from 1/2" copper pipe stub soldered into a threaded bushing. No restriction there.

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Yeah I need to make mine like that. Mine has a lot more places for blockages and restrictions. I just LOATHE going to the local hardware store, because I know NOTHING about plumbing stuff and the bad thing is everybody there knows less than I do. dumbasses.