LEAK in my A/C Condenser Outside.
I just bought a new Goodman A/C system this exact one here:
Problem is after it is installed the condenser is leaking VERY slowly from this valve I have circled in the below pictures.
I come outside once every couple days and run my finger underneath the black cap there and a oily substance rubs off maybe 2-3 drops worth.
How should I go about stopping a leak like this? That black cap is on there SUPER tight so I am not quite sure how it is leaking out...