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How to: fill a paintball tank with a shock/bike pump

Posted: Fri Mar 30, 2012 11:27 am
by killerbanjo
Warning lots of low quality webcam pictures :D

Ok so you want to fill a paintball tank with air at home? Well with this you can fill your air or co2 tank to about 400 psi with a shock pump - with many pumps or to about 120 psi with a tyre pump.

Cost? About £3.50

What you need:

A tubeless tyre valve (Clamp in shrader)
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A circle of rubber with a hole in the middle - i cut mine out of 3mm neoprene and it is 18mm wide
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And one 1/2 BSP to 1/4 BSP reducer
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Ok so first of all take your nut and washer off of the valve
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Put the valve into the reducer from the 1/2" end
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Place the washer on the WRONG way around
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Put nut on and tighten it up
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Place ruber disk in the end of the reducer
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Screw onto shock pump
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And your done :D

Here is a co2 tank at 150psi
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Thanks for looking...

Posted: Fri Mar 30, 2012 11:43 am
by warhead052
How many strokes did it take to fill to 150 psi? It may be worth it to start it off with a regular bike pump up to 200 psi or so, and then go from there with the shock pump.

Posted: Fri Mar 30, 2012 11:48 am
by killerbanjo
Yes i think your right, dont sure how many strokes but i say it took a good 4-5 minutes :lol: Doing it while watching tv though is no chore.

Posted: Fri Mar 30, 2012 12:17 pm
by warhead052
I would say that it took over 100 strokes if it was 4-5 minutes. Nice how to though, but how do you depress the pin valve on the co2 tank?

Posted: Fri Mar 30, 2012 12:21 pm
by killerbanjo
On my tank it seemed to open just by the air pressure

Posted: Fri Mar 30, 2012 12:25 pm
by warhead052
Well, looks like I found a new power source then! I wonder how long it would take to fill with a fridge compressor with no inlet pressure.

Posted: Fri Mar 30, 2012 12:27 pm
by killerbanjo
The only thing, is that for attaching you would have to have a way to depress the pin... either that or use a co2 tank with an on/off valve

Posted: Fri Mar 30, 2012 12:29 pm
by warhead052
Co2 remote line, has an on off valve that connects to the tank, and a slide valve at the end of the hose. And if you slowly open the valve you can semi regulate the flow. I wouldn't do that without a safety valve, but it could be possible.

Posted: Fri Mar 30, 2012 12:35 pm
by killerbanjo
Yes that would work, but annoying NTP threads (At least for me in the uk anyway) What i would do is either remove the pin with an allen key and put a 1/2 ball valve on there and then a 1/2 inch nipple, or just get a tank with an on/off valve

Posted: Fri Mar 30, 2012 2:35 pm
by jackssmirkingrevenge
Buy a stirrup pump and offer to fill bottles for your local airgun club, get paid to keep fit :D