Compression Fitting Leaking:
Hi,
Tried to search, but didn't see an answer:
I removed an old compression fitting from a 1/2" copper tube, and cut the tube using a tube cutter. It was a pretty old tube, so it had some crud on the outside.
I sanded it down with some 100 grain sand paper and then tried to fit it with a new compression fitting. I've tightened it down a bit, and at first look, it would seem fine.
But I've noticed a very slow leak (probably 1 drip ever 20 min. or so) from the compression nut side.
My question is, is this just a matter of cranking the nut down tighter? Or is it possible that sanding with 100 grain sand paper created groves in the copper piple causing a bad seal?
What grain sandpaper is recommened for this? (if this is thought to be the issue?) 150? 200?
TIA