Replacing or Repacking Leaky Stop Valve?

[Kiko]

I have a leaky faucet stop valve that is soldered on. Once I cut it off with a tubing cutter, there will only be about a three-inch stub coming out of the wall. Is that enough pipe to slide on a new compression type stop valve?

Does anyone bother repacking old, leaky stop valves anymore? Does repacking guarantee that the packing nut will stop leaking?

 

[Gary Swart]

Why waste the time trying to repair an inexpensive stop valve? Replace it with a newer 1/4 turn valve. Three inches is plenty of pipe stub to put a compression fitting on. You could also us a Shark Bite.