We recently caem into possession of a 4.5k compressor, 3 Large 4.5 k tanks, and a fill station (little black box) so that our team can fill our own air at our own field. We have a small problem though and would love to pick the field owner's brains on how to fix it.
Our "little black box" the thing most players use with a simple button push to fill their tanks is having a problem. Everything works just fine on the fill, and it fills tanks up to the pressure of our Supply tank, but disconnecting paintball tanks from the black box is proving difficult. Somewhere in our line there is back pressure not being released we think because we cannot disconnect the fill hose form the fill nipple on the paintball HPA tanks. We must flip the little black box over and with a wrench loosen the connection behind the gauge (furthest right when looking from underneath box) until the air bleeds back out. Once the air is bled out we can then disconnect tank.
Could anyone add insight to this problem or know where on these little black fill station things which part controls the bleed valve or back pressure? Thanks for your help in advance. Will upload pics of the setup later for visual reference.
UPDATE: PICS below, the last pic shows what we loosened to temporarily fix our problem. the arrow points to a joint when loosened allows us to bleed the pressure out of the line connecting to small paintball gun HPA tank and disconnect it. That takes longer than it seems it should though (about 6-7seconds) Additionally with this temporary fix method, since we loosened the marked connection a bit it wastes a little air and leaks a bit when filling a tank through the same port, then when the button is release the remaining pressure to paintball tank line is release slowly (about 6-7 seconds)...and there is still pressure in the box after that with air source shut off. if you push the button again with no paintball tank hooked up it bleeds the remaining pressure out in a few seconds. The gauge shows pressure the paintball tank was filled to until you push the button again with nothing connected, then it bleeds out.
one showing the black box connected to tank which was connected to compressor on the left (not shown) and the other of underside of black box. Just showing so you can make sure we set this up right...Ignore generator in background and sorry somehow they got flipped upside down.