I just closed on a house that constantly has "foamy" water coming out of all faucets when I run hot water. The water also has a faint, funny smell to it. Again - only when you run the hot water. If I run only cold water, both problems goes away. This leads me to think the problem is isolated to the water heater in some way. It is natural gas heater, and is city water. Spoke to a few neighbors they do not have the same problem.
I should say the house had been vacant and was "winterized" since November. And, of course, none of this came up during home inspections.
Any suggestions/ideas what could be causing these issues?