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What to Do When Your Water Heater Is Leaking 

man looking at leaking water heater

Troubleshoot Your Water Heater Leak

Leakage from your water heater is typically the first sign of a bigger issue. If you’re experiencing occasional leaks from the top, bottom, or drain valve of your water heater, this is when your water system needs attention the most. Untreated water heaters may result in significant flooding, mold, mildew, property damage, and can spike up in costly repairs. 

Here are a few causes as to why your water heater may be leaking, and what to do when you detect one. 

Broken Drain Valve

Drain valves are located at the bottom of each water heater tank and drain the system of water so that it performs to the best of its ability. However, with this process, residue collects over time, gradually causing damage to the inside of your tank. If you find water leaking at the bottom of your water heater or from the nozzle, you either have a broken drain valve or it simply needs retightening. 

If water is leaking from the nozzle of your drain valve, this is a simple solution and requires you to tighten the knob by hand. Over time, the nozzle may get rubbed against something, and loosen, causing water to drop through the knob. However, if the nozzle continues to drip even after you’ve tightened it, your valve is faulty and will need replacement. Call your local plumber right away and get the repair you need. 


Temperature and Pressure Relief Valve 

The Temperature and Pressure Relief Valve (T&R) is a device that releases pressure if there’s too much inside the tank or if water gets too hot. This discharge tube runs from the valve to the floor, ensuring that any water leaking from the valve goes directly downwards instead of up, preventing water from spraying outward and harming someone. 

If there’s water at the bottom of the hot water tank, check the discharge tube for liquid. If you find liquid there, the problem is your T&R valve, and usually indicates that it’s either broken or has too much pressure. Call a plumber to get your T&P replaced or repaired. 


Internal Tank

Lastly, sometimes your leaking stems from an internal issue. In fact, most leaks occur within your hot water tank, causing water to leak out. This points to the build-up of sediments within your tank that happens over time. When sediments aren’t cleaned out by a professional plumber, issues like this occur.


What to Do Next 

If you are experiencing leakage, whatever the case may be, you should immediately turn off your water and power to the water heater to prevent any further damage. Typically, water heaters have an emergency shutdown procedure, located on the system itself. However, if you aren’t able to locate it, here is what you should do: 


To Turn off Power

Gas: Find the on/off dial, located on the lower side of the water heater, and turn the dial to OFF. 


Electric: Go to the breaker and switch the breaker for the water heater to OFF at the main electrical panel. 


To Turn off Water Supply

Locate the dial on the water supply inlet, which is found at the top of your water heater. Turn off the water supply, by turning the dial clockwise or closed position.


ServiceMark Services

For trustworthy and exceptional service, ServiceMark is dedicated to keeping your home in good condition. Our skilled technicians provide professional water heater replacements, repairs, and system maintenance, with haste. 

If you’re experiencing water heater leakage, call ServiceMark, and allow us to properly diagnose and resolve the issue. Our team works 24 hours a day, seven days a week to ensure that you always stay comfortable in your home. 


The plumbing experts at ServiceMark can take care of your system leak in no time! Let us take a look.

Water Heater Services


How to Keep Your Water Heater in Good Condition

To ensure that your water heater stays in good condition, here are a few things you can do: 

  • Schedule routine maintenance on your drain valve to remove sediments that buildup over time.
  •  Purchase a water sensor alarm that notifies you of any leaks to prevent further damages. 
  • When experiencing leakage, call a plumber right away to avoid additional damages. ServiceMark offers same-day service, so don’t wait a minute more! 

Call ServiceMark now!

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