"desgnr" wrote in message
...
I put a new water valve in the refrigerator,Now when i put back the copper
supply it has a small leak at the fitting.
I cut the fitting off & installed a new compression ferrule & it still
leaks no matter how tight i make it.
Does it need teflon tape on the threads,it didn't have any before i
changed the valve.
How can i fix the leak ?

Try putting a liberal amount of pipe dope on\around the feral before
tightening.