Blowout Adapter

[HandyRandy]

It's that time of year again. It's supposed to be below freezing all day on Thursday. I needed blow out my daughter's truck camper, but it is not parked within hose length of my compressor so I needed to use an air tank. I have a blowout adapter with a Schader valve, but I've never had any luck with Schrader quick (dis)connects. They never seem to stay on without leaking air and I was alone for the project so no one to hold the air hose on the valve.

I have a bunch of air hose fittings and found an Orbit male hose repair part that worked perfectly. I tapped it with a 1/4" NPT tap. The threads weren't deep, but good enough for the air hose connector to bite in. I sealed the threads with JB Weld. The O-ring was to keep the JB Weld from oozing out before it set up.

I can't easily post the picture I took, but the Orbit part number is 106787 "5/8 Male Hose Mender". I found it at Home Depot.

Worked like a champ. I got it totally blown out with only one air tank refill.

[ScottG]

I use a section of 1.5" dia. plastic pipe to blow the drains out. It leaves a tiny amount in them but there's plenty of room for it to expand if it freezes.
Then I use the sink drain plugs to seal them in case and odors try to sneak back through.

[jimh406]

I’ve never had an issue when I used the blow out adapter, but maybe yours is different.

Something to consider, I switched to RV antifreeze since the traps should have something nonfreezable in them, pumps, toilet, and toilet valve seem to do better with something in them, and it doesn’t use that much RV antifreeze anyway. I usually get by with less than a gallon.

[Kayteg1]

I seldom winterize, but always prefer shop vac for 1/2 hr of blowing, what will not only push the water out, but also dry residue.

[ScottG]

Thanks Russ!
I do have a Viar powering my Pac but I've never added a tank or hose fittings. That's something I could do during one of these long winters.

[rhagfo]

ScottG wrote:
I used a brass, male hose plug and a couple of spare bits laying around the garage to make a fitting that I can use to plug the trailer into my air hose like any other air tool.
Not only do I not have to continuously hold the hose on it, it flows a lot better too.

Nice adapter!
The best thing is to have an Viair onboard compressor and 2.5 gal tank!
The PacBrake on the 2001 was compressed air activated, and I grew to use the for inflation and other things. Adding the Viair system to the 2016 was the first project!

[ScottG]

I used a brass, male hose plug and a couple of spare bits laying around the garage to make a fitting that I can use to plug the trailer into my air hose like any other air tool.
Not only do I not have to continuously hold the hose on it, it flows a lot better too.

[RoyB]

I use this adapter to blow out my lines on my POPUP Trailer from the city water port using my 12VDC Air Compresssor…



Works great for me...In my smaller foot print case this blows everything down the sink. Then I just add a little pink stuff in the sink trap. If I open the hot water spigot is also blows most of that down the sink as well... Only leaves a small amount of water in the bottom of the water heater... I can also drain from the low water points too first then blow out the lines...

I would get a screw-on adapter for the Air Compressor side if I was using this with the bigger TT trailers...

Roy Ken

[Johno02]

Bought a 50' extension air hose for my compressor, so I could get it to the MH without having to drag the compressor. Cheap, but one of the best accessories I have ever purchased. Put quick disconnects on it, to match others on compressor and tools. If needed, just snap it in place, if not, disconnect and hang it out or the way.