Originally Posted by HexKrak
Oops! Got 1/4 inch instead of 1/8". Will have to head back to home depot after my trip to the dealership for service. Also I'm afraid I may have drilled too far. We'll see as soon as I get my regulator.
There is a small plastic valve inside the system, that I too, drilled to far and it came out. I think I show it in the first video, but edited some of it out due to size... In the end - as long as you didn't drill all the way to the main "valve housing" (the black plastic section with the tap), you'll probably be okay.
Once opened, I took one of my small picks, and slid it into the housing and you can see where the air passes through... there is no internal regulators, or other complex systems (other than that plastic valve)... which leads me to believe it was a one way check valve... My guess, if pressure goes low, it helps close the system so liquids don't enter the air compartment, but as long as there's positive pressure, that will do the same...