My Rheem Electric hot water system is leaking from the top. The round plug to the top very centre of the cylinder I found on the ground with warm water trickling from the shaft that the plug was covering. In the shaft is a big bolt and some very wet spongey stuff (insulation?). I presume water in not mean to be in this compartment?
I turned on the pressure valve on side to release a little water and put the plug back in at top, but checked it a short time later and it had come out again due to water forcing it out, with warm water continuing to run from the top of my unit all down the side.
I would appreciate any advice before Xmas.