What about putting the valve in boiling water for a few minutes to drive off any oils. You would have to adjust the valve position a few times, but I’d bet that you would get most available oils off the valve with that procedure.
What about putting the valve in boiling water for a few minutes to drive off any oils. You would have to adjust the valve position a few times, but I’d bet that you would get most available oils off the valve with that procedure.