It's a shame I can't fix anything around the house. I appreciate all the contributors here and have learned a lot reading these forums. Thanks to everyone for their input.
the water is dripping consistently and it is warm. It is coming right from where the screw is going into the black thing.
A pipe comes out of the wall, down to this black thing then out the bottom and back into the wall.
This is in the hot water heater closet it in my garage. The drip is pretty steady but I don't see my water meter moving so i am not sure where the water is coming from, where it is going or most importantly how to fix it.
My assumption is some sort of washer or seal is malfunctioning inside the black thing.
I guess my question is getting into that black thing something I can tackle by myself and where would the water valve be to turn the water off? If I can't - should I call a plumber or someone else?