Compression fittings for copper water supply line?

[OpaDC]

I've always used "Water Hawk" on compression fittings and only ever nipped them up just enough so that they don't leak. That way, if you've got to dis-assemble, you can re-tighten a little more on re-assembly, as you've still got some compression left in the olive. Most others I've seen tighten the nuts as though they're trying to cap Mount Vesuvius!

Ray

American equivalent here?

[RayintheUK]

American equivalent here?

Yes, that's the sort of stuff, suitable for potable water.

Ray