Could be your anode rod. Look for a large hex nut on top and see if water is coming from there.
Where is this hex nut? Does it lie within the exhaust line?
No. it should be on top of the tank near the center. You would remove the hex nut and replace the anode. This is a tank type water heater correct?
Yes on the tank type.
All water heaters have a sacrificial anode to prolong the life of the tank and components. What make and model #?
It's a Bradford White model #Mi 5036FBN7
And along with the previous place I mentioned, (within the exhaust area, its also slowly leaking from each of the lines--heater side.
Give me a minute to look up this particular model. Be right back.
And when I say i checked the pressure relief, all I did was manually open it to release pressure.
That's fine. They are supposed to be tested periodically. Still looking for this exact model. Electric Upright correct?