Originally posted by bungie:
Water expandes when heated, in a confined space it builds up pressure. The valve is doing its job
I realize this, however, on the other tanks I have had, this has never happened, and according to the manual, this is an unacceptable condition. I don’t have a drain for the excess water to drain into, so I have a bucket there to catch the water that is draining, which I empty every day (needless to say a pain in the butt). This is a two family house and there is a separate tank for each floor, the other tank does not have this problem, only the newer one.