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Gearheads: Shop Air Question

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June 16, 2026, 04:42 AM
PHPaul
Gearheads: Shop Air Question
What do you like for an automatic compressor tank drain?




Be careful when following the masses. Sometimes the M is silent.
June 16, 2026, 05:52 AM
400m
I’m watching this one. My compressor is in the rafters.
June 16, 2026, 06:27 AM
MNSIG
I've had good luck with these.


https://www.gosuburban.com/tsu...ectronic-drain-valve
June 16, 2026, 07:57 AM
p113565
I have an old 60 Gallon vertical tank w the drain plug in the bottom. Tank bottom is within 2” of the floor; just enough for a close elbow to fit.
Curious to see if something turns up I can use as an automatic drain. Guess I could raise the tank up off of the floor……. Billy
June 16, 2026, 09:25 AM
PHPaul
quote:
Originally posted by p113565:
I have an old 60 Gallon vertical tank w the drain plug in the bottom. Tank bottom is within 2” of the floor; just enough for a close elbow to fit.
Curious to see if something turns up I can use as an automatic drain. Guess I could raise the tank up off of the floor……. Billy


I have a 90, a 6" nipple and a ball valve on mine. Plan is to remove the ball valve and replace it with the auto-drain. I'll post up a picture when I get it done.




Be careful when following the masses. Sometimes the M is silent.
June 16, 2026, 10:58 AM
architect
Does anybody else open the drain, and let the compressor purge itself of compressed air if you're not going to be using it for a while? I do this so as to reduce the positive partial pressure of oxygen inside the tank in the belief that this will reduce oxidation on the tank walls, and thereby delay rust-through. Or am I overthnking it?
June 16, 2026, 12:41 PM
p113565
I do same.
June 17, 2026, 08:50 AM
Calif Phil
Don't remember what brand, but my 80 gal. compressor has an electronic drain that lets out a 3 second blast every 45 min. Works pretty good, as I despised draining it myself.