A water heater can leak from a loose pipe connection at the top, a relief valve that is releasing water, a drain valve near the bottom, condensation on the outside of the tank, or a tank that has rusted through. The location of the water is the best clue to the cause.
Water at the Top
The cold-water inlet and hot-water outlet pipes connect at the top of most tanks. Fittings there can loosen or corrode over time. Water that starts at the top and runs down the side often comes from here, not the tank itself. These leaks can often be repaired.
Water From a Side Pipe
The temperature and pressure relief valve has a pipe that runs down the side of the tank. If water drips from the end of that pipe, the valve is opening. This can happen if the tank gets too hot, if the home’s water pressure is high, or if the valve is worn. Never plug or cap this valve, since it is a safety device.
Water Near the Bottom
The drain valve near the bottom can drip if it is loose or worn. Condensation can also form on cold days or when the heater first fills with cold water, leaving a little moisture that dries up. A steady puddle directly under the tank, with dry pipes above, usually means the tank is rusting through. A leaking tank cannot be repaired and should be replaced soon.
Steps to Take Now
- Turn off the cold-water valve feeding the heater
- Turn off the gas control or the electric breaker
- Keep people away from hot water on the floor
- If you smell gas, leave and call your gas utility
Once the water and power are off, a plumber can confirm which part is leaking and explain the options. A leak is also a good reason to consider the age of the heater and plan ahead. Call JPR Plumbing at (833) 603-1840.