Flex Leak Repair
A leaking copper flex supply line was replaced. This particular supply was on the hot side. It is more often that the hot water side always fails first. This is due to the temperature slowly taking its effect.
Most materials soften when heated. With the cost of copper sky rocketing, stainless steel is slowly replacing some parts that are made of copper. Shown here, a stainless steel supply line replaced the damaged one.
Mock Plumbing Repairs strongly recommends changing these water heater supply lines if there is a leak. Although tightening them may temporarily stop the leak rest assure it will leak again.