Do You Know The Importance Of A Pressure Tank?

Jul 24, 2023 | Plumbing

A pressure tank is an integral component of a well water system, which often goes unnoticed. It plays a critical role in maintaining water pressure and prolonging the lifespan of water pumps. If you’re not sure what a pressure tank is, or how it works, we’re here to help. In this blog post, we’ll provide you with everything you need to know about pressure tanks.

What is a Pressure Tank and How Does It Work?

A pressure tank is a container that stores water under pressure and is connected to the main water line of a well water system. The tank contains an air bladder that has compressed air and provides the necessary pressure to push water through the system. As water flows into the tank, the air bladder compresses, creating pressure within the tank. This pressure is then used to deliver water to your home’s plumbing fixtures.

Types of Pressure Tanks

There are two types of pressure tanks; diaphragm and bladder tanks. Diaphragm tanks use a rubber diaphragm to separate the water and air chambers inside the tank. Bladder tanks, on the other hand, have a flexible rubber bladder made of specialized rubber material that separates the air and water chambers.

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To ensure that your pressure tank functions properly, regular maintenance is necessary. Here are some tips to keep your pressure tank in good condition:

  • Check the air pressure regularly and adjust it if needed
  • Inspect the tank for rust and replace it if necessary
  • Drain the tank regularly to remove sediment and debris
  • Benefits of Pressure Tanks
  • Having a pressure tank in your well water system has numerous benefits, including:
  • Maintains constant water pressure
  • Reduces wear and tear on water pumps
  • Increases the lifespan of the well system
  • Provides a backup water supply during power outages

How to Choose the Right Water Pressure Tank for Your Home

Water is an essential part of our daily lives, and having a reliable source of clean water is important. One aspect that many homeowners overlook is the importance of a water pressure tank. It is the heart of your home’s water supply and the key component that pushes water through the pipes and into your home’s plumbing system.

Consider The Size Of Your Home

The size of your home plays a vital role in determining the type and size of the water pressure tank that you need. If you have a large home or a high demand for water, a larger tank is the best choice. A smaller house with less demand for water can benefit from a smaller tank. One rule of thumb is to choose a tank with a capacity of at least 20-30 gallons per person in the household.

Determine Your Home’s Water Usage

The amount of water your house uses will influence the type of water pressure tank you need. If you have a household that uses a lot of water, a constant-pressure tank may be the best option. These types of tanks maintain the water quality at a steady pressure, regardless of how much water is being used. A traditional tank may be suitable for a household with lower water demand, and the pressure gauge will indicate when it is time to refill the tank.

Evaluate Your Well Pump System

The type of pump that you have installed plays a crucial role in determining the right water pressure tank for your home. One of the most important things to consider is the well’s maximum output. If the well produces a low flow rate, a larger well pressure tank is necessary. Additionally, the pump capacity and cut-out pressure must match the requirements of the water pressure tank. Consulting with a professional plumber or well driller can help you accurately evaluate your pump system.

Consider Maintenance and Longevity

Maintenance and longevity should be a significant consideration when choosing the right water pressure tank for your home’s water system. Steel tanks are the most common, but they do require periodic maintenance to prevent rust. Fiberglass tanks are more expensive but require less maintenance and have a longer lifespan. Plastic tanks are affordable, low-maintenance, and lightweight, but they may not be compatible with some well pump systems.

Brand and Warranties

The brand of the water pressure tank you choose is equally important. You want a reputable company that has a history of manufacturing reliable tanks, with good customer reviews. Also, ensure that the water pressure tank has a warranty of at least five years, so that you can have peace of mind knowing that your investment is protected.

5 Signs Your Pressure Tank is Failing

Knowing the signs of a bad pressure tank can help you address the issue before it turns into a major problem.

Short Cycling

Short cycling occurs when the pressure switch turns on and off frequently. This is a sign that the pressure tank is not holding the necessary air pressure needed to provide a steady flow of water. If you hear the tank turning on and off frequently or notice a sudden drop and then increase in pressure, your pressure tank may be failing.

Waterlogged Tank

A waterlogged tank occurs when there is too much water in the tank, causing it to lose its air pressure. This can happen due to a faulty bladder or at the end of a tank’s lifespan. The waterlogged tank can lead to a decrease in water flow and pressure, as well as damage your pump and other components of your water supply system.

Rust and Corrosion

Rust and corrosion can weaken the pressure tank’s walls, causing it to leak and eventually the entire tank to fail. If you notice any rust or corrosion on the tank or its components, it may be time to replace it.

Air Leaks

If you notice that your pressure tank is losing air or pressure drops, this could be due to air leaks around the fittings or other parts of the tank. If left untended, air leaks can cause further damage to the pressure tank, leading to the need for a replacement.

Poor Water Flow or Low Pressure

Poor water flow or low pressure can indicate that your pressure tank is not working correctly. If the pressure tank is not providing sufficient pressure, it can cause your water flow to slow down and lead to low water pressure throughout your home.

Why You Need a Professional Plumber to Install Your Pressure Tank

Water pressure can fluctuate throughout the day, creating an inconvenience for homeowners who depend on consistent water flow. This is where a pressure tank comes in – it regulates the flow of water throughout your home, ensuring a balanced water pressure. However, installing a pressure tank is not a job for DIY enthusiasts. Without proper training and expertise in plumbing, you can risk property damage and personal injury. Here are some of the reasons why it’s essential to hire a professional plumber to install your pressure tank.

Safety First

Pressure tanks can weigh upwards of 100 pounds and carry high-pressure air and water. This means you could expose yourself to serious risks while installing a pressure tank on your own. Failing to turn off the air valve and main water valve before installation, over-tightening of fittings, and improper handling of electrical connections are just a few examples of hazards that can lead to accidents and injuries. Professional plumbers are trained to handle such tasks and have the necessary equipment and safety protocols to complete the job without putting anyone at risk.

Choosing the Right Pressure Tank

The size and type of pressure tank required for your home depend on several factors, including the water flow rate and the number of appliances that rely on water. A professional plumber can recommend and install a pressure tank that is best suited to your household’s needs. They will know how to configure the pressure switch settings to achieve the desired water pressure, as well as how to install a pressure relief valve to further protect your tank and other plumbing components.

Proper Installation

Even a small error in pressure tank installation can disrupt your water supply or cause damage to your plumbing. A professional plumber will have the necessary expertise and tools to properly install valves, fittings, and piping. They will also ensure that the valve settings are correctly calibrated, pressure gauges are functioning correctly, and the expansion tank is the proper size and installed in the right location. Trying to do it yourself could result in leaks, reduced water pressure, or even system failure.


While it may seem cheaper to install the pressure tank yourself, you may ultimately end up paying more in repairs or replacements. Incorrect installation can cause damage to your plumbing system and other home appliances, leading to costly repairs down the line. Additionally, you may purchase an inappropriate pressure tank size or type, leading to higher energy bills and water waste. Hiring a professional plumber not only ensures that the job is done correctly, but it also saves you money in the long run.

Compliance with Building Codes

A professional plumber will ensure that the pressure tank installation is compliant with local building codes. Building codes are in place to ensure public safety, prevent property damage, and maintain the integrity of the plumbing system. A licensed plumber knows these regulations and will ensure that your pressure tank installation meets or exceeds local codes. This means you can have confidence in the safety and longevity of the installation.


Installing a pressure tank may seem like a simple task, but mistakes made during the installation can have dire consequences. The safest and most effective way to install a pressure tank is to enlist the services of a licensed plumber. Plumbers provide professional expertise, safety measures, and compliance with building codes. With proper installation, you can look forward to a safe, long-lasting, and efficient pressure tank that delivers a constant water pressure throughout your home.

At MD Sewer and Plumbing we are here all your plumbing needs with our extensive list of services offered, and upfront pricing, you can’t go wrong. Give us a call today!

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