A tank heater has a drain valve near its base. If water appears after the valve was used, debris may keep it from sealing fully or a nearby fitting may be leaking. Water can run along the jacket, so the puddle may form away from the source.
Identify where moisture starts
If safe, look for wetness at the valve outlet, around its stem, or above it on the tank. Report whether it appears only after a heating cycle or continues while the heater is idle. Avoid opening the valve again or contacting hot water.
Ask what is leaking before approving work
Share the heater model and any recent maintenance. A technician can distinguish a serviceable drain valve from a leak at the tank or its connection. Ask how they will check the repair once the unit returns to normal operation.
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