Yea, I agree.
See if I've forgotten anything here...
On the robot-side:
The black handle dump valve would get another push-to-connect screw fitting giving your external feeder tubing a place to connect to.
The extra robot-side dump valve comes out altogether.
On the off-board compressor-side:
The external feeder tubing would T into the off-board compressor. On the other branch of the T would be the additional dump valve venting to the atmosphere.
To use it-
- Connect the compressor feeder tubing to the robot's dump valve.
- Open the robot's dump valve
- Close the compressor-side dump valve
- Hookup the compressor to the robot spike
- Power up the robot & Enable from the Driver Station to start the compressor
- Shutoff the robot when fully charged
- Close the robot-side dump valve
- Open the Compressor-side dump valve to the atmosphere
- Disconnect the now unpressurized feeder tube from the robot