I just bought a new water hook up for our Boler
from a marine supply place, installed it this weekend, but the thing leaks
like crazy from the back of the fitting on the outside that attaches to the hose. I'm attaching a picture here, can't think that it's intended to leak like this. The only thing I can think is that the hexagonal opening in the middle of the thing is intended to be tightened down with a socket? I don't have the right size socket to fit right now, was hoping someone could confirm that I'd be able to tighten it up that way? Appreciate your input.