"George" wrote in message
...
The in-line hot water stop valve for the faucet on my kitchen sink is
leaking.

George,

Is it leaking from the bottom, the top or the valve stem? The bottom would
be the worst possibility, as you'd have to re-sweat the join.

If it's the top, try tightening the compression nut but be sure to hold the
valve itself as you do so that you don't put too much torque on the line and
rupture the pipe or soldered joint.

If it's the valve stem, try tightening the nut that holds the valve stem
in. If that doesn't work, you may need new packing for the stem.

Was this something you just noticed one day or did it start leaking after
you turned off the valve for repairs on the faucet?

Paul