Two years ago I replaced my water heater with a 40-gallon AO Smith (gas-powered). For the last few weeks I notice a sulfur-like stink coming out of the spout when I turn the hot water tap on in the upstairs faucet first thing in the morning. The stink goes away after about 10 seconds and is gone by the time hot water comes out. I don't smell it at any other time, just in the morning.
Ideas?
Ideas?