The problem I am having has to do with my own home. We built a new house nine years ago,with a electric water heater on each end of the house. Since that time we have replaced both water heaters twice, the most recent yesterday. Twice before the heaters blew while we were away and partially flooded the house, twice we were at home and caught it. The one I took out yesterday was so corroded it took almost four hours for it to drain enough so I could get it outside and unscrew the drain that was completely stopped up. I am not sure what is causing this problem but it is getting really OLD! I do have a water softener and several guys have tried to blame it on that but I would need to have a lot more proof.Curious if anyone has ever seen this problem before?