Problem #2: What Causes a Water Heater Leak?  

A leaking water heater is one of those home problems that tends to get your attention fast. Water around the base of the tank, a small puddle on the floor, or a steady drip from a pipe can all be signs that something needs attention. 

The good news is that not every water heater leak means you need a new system. The cause of the leak matters, and finding it early can sometimes prevent a much bigger mess. 

Some of the most common reasons water heaters leak include: 

• A Loose or Damaged Connection 

• A Faulty Temperature and Pressure Relief Valve 

• Sediment Buildup Inside the Tank 

• Corrosion Inside the Tank 

• A Drain Valve That Won’t Stop Dripping 

Let’s dive in and discuss more!  

#1. A Loose or Damaged Connection 

Start with the simple stuff. Water heaters have several pipes and connections running into and out of the tank. Over time, those connections can loosen, corrode, or develop worn seals. 

If you notice water dripping from one of the connections near the top of the water heater, the tank itself may be perfectly fine. Our plumbers can inspect the connection and determine whether it needs to be tightened or repaired. 

#2. A Faulty Temperature and Pressure Relief Valve 

Every traditional tank-style water heater has a temperature and pressure relief valve, often called a T&P valve. Its job is important: It releases water if the temperature or pressure inside the tank gets too high. 

When the valve starts leaking, you may see water coming from the discharge pipe connected to it. Sometimes the valve itself has simply worn out. In other cases, high water pressure or an overheating issue may be contributing to the problem. 

Because this valve is a safety feature, it’s not something to ignore or bypass. If you notice this, call our plumbers, and we can check to see why it’s releasing water and whether the valve needs to be replaced. 

#3. Sediment Buildup Inside the Tank 

Florida water can contain minerals that settle at the bottom of a water heater over time. That sediment can build up inside the tank, especially if the water heater hasn’t been flushed regularly. As the sediment layer gets thicker, it can cause the burner or heating element to work harder. It can also contribute to overheating and damage to the tank itself. 

In some cases, flushing the tank can help. If sediment has been sitting there for years, though, the damage may already be done. 

#4. Corrosion Inside the Tank 

This is one of the more serious causes of a water heater leak. Traditional water heaters have a metal tank designed to hold hundreds of pounds of water. Eventually, that metal can corrode. The anode rod inside the tank helps protect the tank from corrosion, but it wears down over time and needs to be replaced periodically. 

Once the tank itself starts rusting through, there isn’t a patch or quick fix that will make the tank good as new. A leaking tank usually means it’s time to replace the water heater. 

#5. A Drain Valve That Won’t Stop Dripping 

The drain valve sits near the bottom of the water heater and is used when the tank needs to be drained. Like other plumbing components, it can wear out. 

A dripping drain valve may be relatively simple to repair or replace. However, because it sits near the bottom of the tank, it can sometimes look like the tank itself is leaking. 

What Should You Do If Your Water Heater is Leaking? 

First, don’t ignore it. Even a small leak can cause water damage if it continues for hours or days. 

If you have an accessible shutoff valve for the water heater, you may be able to turn off the water supply while you wait for our plumbers. If you have an electric water heater and there is significant leaking or water near electrical components, shut off power at the appropriate breaker if you can do so safely. For gas water heaters, avoid interfering with the gas controls unless you know exactly what you’re doing. 

Then call on our team to find the source! 

Don’t Let a Small Leak Become a Big Problem 

A water heater leak isn’t something you want to put on the bottom of your to-do list. The sooner the source is found, the better your chances of limiting water damage and understanding your repair or replacement options. 

If your water heater is leaking, our team at Coral Pelican Plumbing can swoop in to help. We’ll find the source of the leak, explain what’s going on, and recommend the right next step. Contact us today to schedule an evaluation and get the problem under control!