Aarrrghhh!

[Melody Ranch]

I remain convinced that with the dimensions you gave....375 and .3578 inches....the copper can easily, quickly and safely be emory papered down so as to use the standard compression bead and fitting.

[Wazbro]

Originally Posted by Melody Ranch

I remain convinced that with the dimensions you gave....375 and .3758 inches....the copper can easily, quickly and safely be emory papered down so as to use the standard compression bead and fitting.

What just because the old copper is thicker?

[hardwoodjdc]

You might try to compress the line a little using a 3/8 " flaring tool, just the line side and don't add the flare. Another option might be to slip a copper nut on the line and go ahead and flare it.

[Smartstream]

Try refrigeration tubing. 3/8 tubing is .375 o.d. and the sweat fittings are a loose fit and .3758 should be no problem. Also the clamps and hose will hold water but without barbs it can slip right off the tubing. Repairing an in-line split helps to capture the hose but unrestrained like your application is not as secure. And yes it will get soft and swell under pressure with hot water.