I had an AO Smith GCV 50 300 ProMax 50 gal gas water heater installed last weekend. There appears to be a minor leak under the bottom lip on the back side of the tank opposite the burner. Plumber returned mid week and explained it was condensation between the inner tank and the insulation and would disappear over the next several weeks. The leak appears to be less now, maybe 1 oz or less per day. Is this normal?
Thanks in advance for your advice.