Blew the water out of the lines on the RV today. The water service regulator also works with air. The only air chuck I have with a lock is on the digital air pressure gauge. Used a plastic Xacto clamp to hold the lever open. Anything heavier would have pulled it off the valve stem enough to leak.

The water supply regulator works fine on air too. Tested it in the shop first. This one regulates to 40psi.

We have a bunch of stuff going on tomorrow so may not get the anti freeze pumped through until Sunday.
DAC

The water supply regulator works fine on air too. Tested it in the shop first. This one regulates to 40psi.

We have a bunch of stuff going on tomorrow so may not get the anti freeze pumped through until Sunday.
DAC