question about manifold for kegging (leak?)

[zodiak3000]

in the process of setting up a 3 tap keezer/fridge with a 4-way manifold. the reason for the 4-way is to have a spare gas line to use for my blichmann beer gun. the gun will only be used for filling for competitions and not hooked up 100% of the time. my question, is there potential risk for a leak on that spare gas out? should a use a plug of some sort or hook up a beer line with a gas connector just to secure? the spare valve on the gas will obviously be in the "off" position, i just dont know if there is potential for gas to get through.

 

[FuzzeWuzze]

If its made properly when the valve is closed no gas should get out. You can always spray star san or soapy water into the valve and see if it bubbles to see if any gas is leaking out.