Thinking
Tonight I feel like an idiot. I just spent about an hour building a new fog light harness with 2 plugs (set up for extras). When I got done, I put it away to use tomorrow when I put the light bar behind the grille and get that done. Well anyways, I had a pair of Mustang Pony fog lamp extensions in my box, so I used one of the females for my bar and soldered and shrinked everything nice and tight. What I had left was 1 extension and the male half. Thinking of the fog lights on our 150's, they use the same 900x universal plugs. They go right onto the existing plugs.
So I am going to solder the male plug extra, to the complete extension (8 inches) and have 2 males, so I can use it as a splitter, so when I turn on my fogs, the light bar will use the same circuit. So now instead of the full harness from battery to lights to dash switch, I just put in a jumper with 30 amp relay inline. These are the pieces I'm using. The relay will be the standard 5 pin but will have the fog light plug wired for the bar, and the input will have the female end so it will all be water tight and sealed.
Welllll, we were doing PM’s in the BHU when we noticed a PRV leaking through. I thought to myself- WTF!- ive never seen that happen- i should let the boss know. If we dont get a new one ASAP, we might be SOL! 

Don't have a 6-popper here, so I'm not sure, but it's certainly a vacuum line of some sort. Does it really matter what it is? Can you simply get a piece of heater hose to replace it? That should have enough structural integrity to not collapse like the garden hose.
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