air circ. valve
#1
air circ. valve
Should this valve open if vacuum is pulled at the fitting?
Trying to test mine and if I hook the vac. pump to it, there's no reading on the gauge. Seems like it should hold vacuum and open valve.
Trying to test mine and if I hook the vac. pump to it, there's no reading on the gauge. Seems like it should hold vacuum and open valve.