Water Expansion Tanks

A water expansion tank is one of the most important safety devices in a plumbing system, yet many homeowners in Myrtle Beach aren’t familiar with what it does or why it matters. At Hunter Plumbing Services LLC, we install and service expansion tanks to keep your home’s plumbing safe, efficient, and long-lasting. If you have a closed plumbing system or a modern water heater, chances are you need an expansion tank to protect your pipes and fixtures.

What Is a Water Expansion Tank and Why Is It Important?

When water is heated, it naturally expands. In an open system, the excess pressure is released back into the municipal water supply. But most modern homes use a closed system that includes a backflow preventer or pressure-reducing valve, which stops water from flowing backward. In these systems, the pressure from expanding hot water has nowhere to go, which can put dangerous stress on your pipes, fittings, and water heater.

A water expansion tank solves this problem by absorbing the excess pressure. Inside the tank is a rubber bladder filled with air. As water expands, it presses against the bladder, which cushions and balances the pressure in your system. This protects your plumbing from leaks, bursts, and premature wear while also helping your water heater operate more safely.

How Can a Homeowner Tell If They Need One?

If your home has a closed water system, you need an expansion tank. One of the easiest signs is the presence of a pressure-reducing valve or backflow preventer on your main water line. Homeowners may also notice sudden spikes in water pressure, dripping faucets, or the relief valve on a water heater releasing water. These can all indicate that pressure has nowhere to escape and that an expansion tank is needed. Our plumbers can inspect your setup and quickly determine if your home requires one.

How Long Do Expansion Tanks Last?

A properly installed expansion tank will generally last between five and ten years, depending on water quality and system conditions. The rubber bladder inside the tank can wear down over time, especially in areas with high mineral content in the water. A failing tank may feel heavy with water when tapped, or you may notice fluctuating water pressure throughout your home. We recommend checking your expansion tank regularly during water heater maintenance and replacing it if signs of wear or failure appear.

Problems with Incorrectly Installed Expansion Tanks

Expansion tanks are only effective if they are installed correctly. We often see problems when tanks are mounted improperly, not supported, or installed at the wrong angle. In some cases, tanks are sized incorrectly for the water heater or system they serve, which prevents them from absorbing enough pressure. An incorrectly installed tank can lead to leaks, water hammer, or even damage to your water heater. At Hunter Plumbing Services LLC, we make sure your expansion tank is properly sized, positioned, and tested for safe operation.

Professional Expansion Tank Services in Myrtle Beach

Expansion tanks may seem like a small part of your plumbing system, but they play a big role in preventing costly damage. Our team at Hunter Plumbing Services LLC provides expert installation, inspection, and replacement services for water expansion tanks throughout Myrtle Beach and surrounding communities. We take the time to evaluate your plumbing system, choose the right tank, and install it properly so your home stays safe from excess pressure.

If you’re noticing water pressure issues or if your water heater doesn’t have an expansion tank, give us a call. We’ll inspect your system and provide the reliable solutions you need to keep your plumbing running smoothly.