Originally Posted by Brain0030
Thank you for all the advise. here's what I've found.
I removed some of the styrofoam and turn on the bypass and turned off the 2 connections to the tank, no leak. As soon as I turn on the connection to the tank and I can hear the tank filling up, it begins to leak. I turn off the connection to the tank, no leak.
It seems to be coming from the back of the tank. (External side). I can't really see, but if I could, I'm sure it's just a connection leak rather than a tank leak. Is there a way to get access to the other side of the tank/connections/pipes without taking the entire unit out?
The only connections on the outside are the pressure relief valve and the drain, both easily visible from outside under the cover. The other connections are the cold in, hot out, and electric element all on the back (interior) side of the heater.
From your description of the leak it seems to me that your tank itself probably has a hole or split.