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Why Is My Water Heater Leaking Water?

Leaks. They come in all shapes and sizes, and one thing’s for sure — they always catch us off guard. Whether it’s a slow drip from a faucet or an unexpected puddle around your water heater, leaks are never fun to deal with. The frustrating thing is that they seem to happen at the worst possible time, like when you’re rushing to get the kids ready for school or about to head out for work. One moment, everything is fine, and the next, you’re asking yourself: “Why is my water heater leaking water?”

If you’ve noticed water pooling around your water heater, you’re likely concerned about what this means. Can you still use your water heater if it’s leaking? Is this an emergency? Or maybe it’s something that can be put off for a while? In this blog, we’ll break down some common reasons why your water heater might be leaking and what you can do about it.

Common Reasons for a Leaky Water Heater

A leaky water heater can have several causes. Some issues are quick fixes, while others might require a bit more effort or the help of a professional. Here’s a breakdown of the most common culprits behind that annoying water leak:

Loose Drain Valve

One of the simplest causes of a water heater leak is a loose drain valve. The drain valve is typically located near the bottom of your water heater and is used to drain the tank for maintenance or repairs. If this valve becomes loose over time, you might notice water slowly dripping from it. Luckily, this is an easy fix — grab a pipe wrench and try tightening the valve gently. If the leak stops, problem solved!

Faulty Temperature and Pressure Relief (T&P) Valve

Another potential source of a leaky water heater is the temperature and pressure relief valve (often called the T&P valve). This valve acts as a safety mechanism, releasing water when the pressure inside the tank gets too high. If it’s malfunctioning or there’s too much pressure inside your water heater, it could be releasing water unnecessarily.

Corrosion or Cracks in the Tank

Unfortunately, corrosion in the water heater tank itself can potentially be why your water heater is leaking water. Over time, sediment builds up inside the tank, which can lead to rust and eventually weaken the tank’s structure. When the tank gets corroded, you might notice water leakage around the base. Unfortunately, if your tank is corroded, water heater replacement may be your only option.

Worn-Out Anode Rod

The anode rod is designed to prevent the tank from rusting by attracting corrosion. But once it becomes worn out, the tank is left vulnerable to rust. If you don’t replace the anode rod as part of your water heater maintenance, it could lead to internal corrosion and, eventually, a leak.

Loose Inlet or Outlet Connections

Your water heater has both inlet and outlet connections for cold water coming in and hot water going out. Over time, these connections can loosen, leading to small leaks. If you notice water leaking from the top of your water heater, it might be worth checking these connections. Tightening them with a wrench may solve the problem.

Excessive Water Pressure

Too much pressure in your plumbing system can also lead to a water heater leak. If the water pressure in your home is too high, it can put stress on your hot water tank, causing leaks from various points, including the T&P valve. Installing a pressure-reducing valve can help manage the pressure and prevent future leaks.

Can I Still Use a Water Heater If It Is Leaking?

A common question homeowners ask is, “Can I still use a water heater if it is leaking?” The short answer: it’s not recommended. Even if it’s just a small leak, using a leaking water heater can cause further damage, not just to the unit but also to your home. The last thing you want is to deal with further damage like water pooling in your basement or, even worse, flooding.

Leaks can also lead to mold growth and water damage if left unaddressed. On top of that, continuing to use a leaking water heater could potentially lead to a complete tank failure, where the entire tank bursts and causes a major flood in your home. So, if you spot a leak, it’s best to shut off the water supply and call a water heater professional to assess the situation.

What to Do If Your Water Heater Is Leaking

If you notice your hot water heater leaking, follow these steps:

1. Turn Off the Power Supply

For electric water heaters, turn off the power at your home’s electrical panel to avoid any safety hazards. If you have a gas water heater, turn off the gas valve to stop the gas flow.

2. Shut Off the Water Supply

Locate the cold water inlet valve (typically near the top of your water heater) and turn it off. This will stop water from entering the tank and prevent more water from leaking.

3. Clean Up the Area

Use paper towels, a mop, or any absorbent material to clean up any pooling water around your water heater. This prevents damage to flooring and nearby items.

4. Call a Professional

At this point, it’s time to call in professional plumbers like those at Arlinghaus. They’ll be able to diagnose the issue and recommend whether you need a simple repair or a full water heater replacement.

Prevent Future Leaks With Regular Maintenance

The best way to avoid the headache of a leaky water heater is by keeping up with regular maintenance. Simple steps like flushing the tank annually, checking the anode rod, and inspecting for any loose parts can go a long way in extending the life of your water heater. Sediment buildup can be minimized by flushing your tank, which also helps maintain your water heater’s efficiency.

If you’re not sure how to maintain your water heater or prefer to leave it to the experts, don’t hesitate to schedule an annual water heater maintenance checkup. This can catch small problems before they turn into major leaks.

Signs It’s Time to Replace Your Water Heater

If you’re constantly asking yourself, “Why is my water heater leaking water?”, it might be time to replace it. Here are some signs that a new water heater might be in your future:

  • The heater is ten to 15 years old.
  • You frequently notice water leaks or rust around the tank.
  • Your hot water is running out faster than usual.
  • The water temperature fluctuates too often.

Ready to Fix That Leak? Call Arlinghaus Today!

Have you been asking, “Why is my water heater leaking water?” If the answer is “yes,” don’t wait for the problem to get worse. Whether you need a quick repair or it’s time for a replacement, Arlinghaus is here to help. Our experienced team can quickly diagnose the issue and offer the best solution, whether it’s a repair or installing a brand-new unit. As a 24-hour plumber in Cincinnati, you can trust us to assist you when you need us most. You’ll never be left in a lurch, no matter the time of day.

Are you facing a leaking water heater or need help with drain repair services? Schedule your appointment with Arlinghaus today. We’ll make sure your home stays dry, safe, and comfortable for you and your family! We proudly serve the residents of Cincinnati, OH, Erlanger, KY, and the surrounding areas.

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