My sink is leaking at the p-trap's inlet. It is plastic going from my garbage disposal into a metal fitting. It looks like it was sealed with something like petroleum jelly. I've wiped it off in this picture though since it obviously wasn't working anymore.
What is the appropriate way to seal this and prevent further leaking? Fortunately it seems I caught it earlier enough that not too much damage was done.
Best Answer
It is not sealed with petroleum jelly but a beveled slip washer. You can try to tighten the nut on the p-trap where the black pvc enters the copper p-trap. If that does not work, you will need to get a new 1 1/2 beveled slip joint washer. Your big box home improvement stores carry them as do any plumbing supply houses.
They also make rubber washers for this fitting:
But I prefer the beveled slip washer since it works on compression.