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Hands-On How-To This board is ONLY for detailed, instructional posts about how to do or make something. General conversation about a topic belongs in the appropriate board.

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Old 10-15-2016, 06:39 AM
randallhilton's Avatar
randallhilton Male randallhilton is offline
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Join Date: Jan 2009
Location: Fort Worth TX
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Default Restore pressure to aerosol can like WD40

This is one of those Ah Ha! moments for me -- complete with a palm print on my forehead.

Over the years, I've had several spray lube cans which ran out of propellant before the can was empty. Typically, I punctured the can to get the last drops out.

I found a Youtube video where the guy simply re-pressurizes the can. Too easy!

All you need is a tubeless tire valve stem (it doesn't even need a core) and an air pump.

First: remove the spray nozzle from the can.

Next: place the valve stem over the nipple (or the hole in some brands).

Next: Connect your bicycle pump or compressed air chuck while holding the valve stem tightly to the top of the can.

The pressure will force the can's valve open and pressurize the can.

Replace the spray nozzle and finish using your product.


Here's the Youtube Link.

Use less, lose less, weigh the benefits, count the costs.
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Old 10-15-2016, 08:41 AM
Dude111 Dude111 is offline
Join Date: Apr 2016
Posts: 53

Very good...... How elemantary

Muchos Gracious!!
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Old 10-16-2016, 11:22 AM
doc doc is offline
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Join Date: Apr 2013
Location: The Driftless Area, WI
Posts: 1,529

Thanks for posting that. I've got a bunch of spray paint cans that have gone flat and will try it out.
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