RE: Digital pressure gauge from Dreamworks question
Ken,
It's been a real long time. How have you been?
Regarding the fill valve, they are just saving you the trouble of having to "T" off to your system down the line somewhere. Like Falcon said, the third one goes to the "system" (the actual valve you are using to control the specific system, i.e.. brake valve, retract valve etc.)
And as far as the power lead, just as has been mentioned, just "Y" it.
R/
George