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East Central Ia | I built one last winter and had an used air line from removing the bunk. I just plumped it in past the valve that I use to switch from recirculating or unloading the truck. I did not add any additional tanks and it works great.
I used all 3" with the clamp and gasket type fittings. They are a bit more expensive but made it much easier with complex plumbing. If something leaks I can simply pull it apart anywhere without having to unscrew anything.
Working with 3" is a whole new ball game though... something as simple as sliding a hose barb into a hose becomes very difficult with 3". I had a heat gun handy to warm up the hose, and used dish soap to lubricate things. | |
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3" plumbing on water truck
