A water heater usually leaks because of a loose connection, a faulty valve, or a tank that has rusted through. Some leaks can be repaired. A leak from the tank itself often means the heater needs to be replaced.
Check Where the Water Is Coming From
Look carefully, but do not touch hot pipes or parts. Water near the top may come from the pipe connections. Water on the side may come from the temperature and pressure relief valve. Water pooling under the tank can mean the tank itself is leaking.
Common Causes
- Loose or worn pipe fittings at the top of the tank
- A relief valve opening because of high pressure or heat
- A drain valve near the bottom that is loose or worn
- Rust inside the tank from age and sediment buildup
Gas water heaters can sometimes produce condensation, especially when they heat very cold water. A small amount of moisture that dries quickly may not be a leak. A steady drip or a growing puddle should be checked.
What to Do Right Now
Turn off the cold-water valve that feeds the heater. For a gas heater, turn the gas control to off or pilot. For an electric heater, switch off its breaker. If you smell gas, leave the home and call 911 or your gas utility from outside.
The relief valve protects the tank from too much pressure. Never cap or plug it, even if it drips. A dripping valve is a sign to have the heater checked.
Getting It Fixed
A plumber can find the source of the leak and explain whether a repair or a new heater makes more sense. You can read about how we handle leaking water heaters to see what that involves.
If your Bronx water heater is leaking, call JPR Plumbing at (833) 603-1840. While the heater is being checked, it can also make sense to have nearby valves and supply lines looked over.