If hot water is leaking from a pipe, keep your hands and skin away from the spray, then shut off the water. Close the cold supply valve on top of the water heater to stop hot water flow, or close the main valve if you cannot reach it safely.
Why Hot Water Leaks Need Care
Water from the heater can be hot enough to burn skin, especially if the thermostat is set high. A hot water leak also wastes energy, since the heater keeps running to replace the lost water. Steam and moisture can damage drywall and wood quickly.
Steps to Take
- Keep children and pets away from the leak
- Close the cold water valve on top of the water heater
- If needed, close the main water valve for the house
- Open a hot water faucet on a lower floor to relieve pressure
- Catch the drips and dry the area once the water cools
Do not touch electrical or gas parts on the water heater. Any smell of gas near the heater is a reason to leave the home first and phone for help from a safe distance.
Why Hot Lines Fail
Hot water lines expand and contract more than cold lines, which stresses joints over time. Corrosion, worn fittings, and pinholes in older copper are common causes. Leaks near the water heater can also come from the relief valve, the heater connections, or the tank itself.
After the Water Is Off
With the cold supply closed, the house will have no hot water until the leak is repaired. Cold water may still work if the leak is only on the hot side. A few pictures of the pipe and the wet area are useful for your records.
When a hot line is spraying or will not stop, reaching a plumber who can respond fast is the safest choice. For older hot water lines that leak more than once, you can ask about replacing the worn sections at (833) 603-1840.