Mon - Fri 8:30 AM - 4:00 PM
Follow Us

4 Common Reasons for Hot Water Heater Leaks

4 Common Reasons Hot Water Heater Leaks

It seems like every year we hear stories about water heater leaks. From leaking pipes to faulty valves, hot water heaters can leak with alarming regularity.

In this post, we’ll share with you the most common reasons why hot water heaters leak. Then we’ll go over how to fix these problems yourself without having to call a plumber and requiring his water heater services.

If you’ve had a hot water heater leak before, then you already know how frustrating it can be. But if you haven’t experienced a hot water heater leak yet, then read on. I’m going to tell you everything you need to know about hot water heater leaks so you can prevent them from happening again.

What are some 4 reasons your hot water tank is leaking

Water heaters are one of the most important appliances in your home. They keep your family warm during the cold winter months and cool during the summertime. But did you know that there are many things that can go wrong with your water heater? Here are four common problems that can cause your water heater to leak.

1. Leaking Drain Valve

If you notice water dripping out of the bottom of your water heater, it might be because of a faulty drain valve. Check the drain valve to make sure it isn’t clogged up. If it is, call a professional plumber to fix it.

2. Damaged Tank

Your water heater tank can crack over time due to corrosion caused by minerals in hard water. To prevent this problem, change your water filter every six months. Also, clean your tank once a month to reduce the buildup of sediment.

3. Leaky Pipe

Leaks in pipes can occur anywhere along the length of the pipe. You’ll want to inspect your entire plumbing system to find where the leak is coming from.

4. Faulty Thermostat

A malfunctioning thermostat can lead to a leaky water heater. Make sure to replace your thermostat if it doesn’t work properly.

What Are the Causes of Water Heater Leaks?

Water heaters are one of the most common appliances found in homes today. But despite being reliable, safe, and efficient, there are still some things you need to know about how they work. One of those things is that water heaters do leak. And while it might seem like a small problem, it can actually lead to serious issues. So what causes water heater leaks? Let’s take a look.

Internal Tank Leaks

The internal tank of a water heater is where the heating element is located. This is where the majority of the energy used to heat the water goes into. When the water inside the tank gets hot enough, it expands and pushes against the sides of the tank. Over time, the force exerted by the expanding water can weaken the walls of the tank, causing cracks to form. These cracks eventually become large enough to let water out.

Inlet/Outlet Connections

Another source of leaks is the connection between the water supply pipe and the water heater itself. If the connection isn’t tight enough, water can seep out. The same thing happens if the connection is too loose.

Faulty Temperature & Pressure Relief Valves

A third major cause of leaks is faulty temperature and pressure relief valves. These valves are designed to release excess pressure from the system when needed. However, if the valve becomes worn or damaged, it won’t properly seal off the pipes. As a result, water can continue to flow through the system.

Prevention of Water Heater Leaks

Water heaters are common appliances found in homes across America. They provide hot water for showers, washing machines, dishwashers, clothes dryers, and many other uses. However, there are several things you should know about how to keep your water heater safe, working properly, and making it last longer.

A leaky water heater could lead to serious damage to your home, including mold growth, structural damage, and even fire. If you notice any leaking around the base of your water heater, it’s important to call a professional immediately. You don’t want to wait too long because a small leak can grow into a big problem very quickly.

If you see any signs of trouble, such as cracks in the tank, check the manual for instructions on how to fix the issue. This might include replacing parts like the thermostat or flue pipe. If you think something is wrong, contact a professional plumber immediately.


In conclusion, if you notice that your water heater is leaking, it’s probably because it has a leaky valve. This problem usually happens when the valve becomes worn over time, which causes it to wear unevenly. When this occurs, the valve won’t seal properly, allowing water to escape through the cracks.

The easiest way to fix this issue is to replace the entire valve assembly. However, if you’d like to save some cash, you can easily repair the leaky valve instead. Simply remove the old valve from its housing, clean it thoroughly, and reinstall it. Once you’ve done this, turn the water supply back on and let the system run for a couple of minutes. Then, check to see whether the leak has stopped. If it hasn’t, repeat these steps until the leak stops completely.

If you have replaced many parts of your water heater and it still continues to leak, then perhaps you should consider replacing it before you spend additional money on a water heater that is perhaps too old already.

Table of Contents
Butler Plumbing Inc Logo

Looking for some plumbing help? Contact Us!