I was able to get 500' of plastic tubing to run water and compressed air to a barn. The tubing is made by Advanced Drainage Systems, and described as 1 in. x 500 ft. CTS 250 psi NSF Poly Pipe in Blue. Perfect for my application, UNTIL I found out that it requires a pack joint fitting. Apparently. And those are on the order of $50 each. With three lines, I am looking at $300 just to connect to the tubing.

Is there someone with more experience who can suggest an alternative? Like a standard barb fitting (which my guess is will not be the right diameter).

Any guidance is welcome.