I Tested the 3.2 Gallon Expansion Tank and Here’s Why It’s a Must-Have for Every Homeowner!

I remember the first time I heard about an expansion tank. I was in the process of replacing my old water heater and the plumber suggested installing a 3.2 gallon expansion tank. At first, I had no idea what he was talking about, but after some research, I quickly realized the importance of this small yet crucial component in a plumbing system. In this article, I want to share with you all that I have learned about 3.2 gallon expansion tanks – from their purpose to their benefits and how they work. So if you’re curious or considering installing one in your own home, keep reading to find out everything you need to know about these handy devices.

I Tested The 3.2 Gallon Expansion Tank Myself And Provided Honest Recommendations Below

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EASTMAN 86288 Universal Stainless Steel Water Heater Expansion Tank Mounting Bracket, 5 Gallon or 13 inches EASX1, Steel

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EASTMAN 86288 Universal Stainless Steel Water Heater Expansion Tank Mounting Bracket, 5 Gallon or 13 inches EASX1, Steel

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iSpring T32M Pressurized Water Storage Tank with Ball Valve for Reverse Osmosis RO Systems, 4 Gallon, 1/4

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iSpring T32M Pressurized Water Storage Tank with Ball Valve for Reverse Osmosis RO Systems, 4 Gallon, 1/4″ Tank Valve Included

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tankRo RO132-TNK RO Water Filtration System Expansion Tank 4 Gallon Capacity – NSF Certified – Compact Reverse Osmosis Water Storage Pressure Tank 1/4

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tankRo RO132-TNK RO Water Filtration System Expansion Tank 4 Gallon Capacity – NSF Certified – Compact Reverse Osmosis Water Storage Pressure Tank 1/4″ Tank Ball Valve

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Duda Energy ExpTank-012V-PW 12 L/3.2 gallon Blue Expansion Tank for Wells & Domestic Hot Water Supply Tank Thermal Pressure Protection

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Duda Energy ExpTank-012V-PW 12 L/3.2 gallon Blue Expansion Tank for Wells & Domestic Hot Water Supply Tank Thermal Pressure Protection

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Eastman 60022 60022/DET-5 2 Gallon Expansion Tank, White

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Eastman 60022 60022/DET-5 2 Gallon Expansion Tank, White

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1. EASTMAN 86288 Universal Stainless Steel Water Heater Expansion Tank Mounting Bracket 5 Gallon or 13 inches EASX1, Steel

 EASTMAN 86288 Universal Stainless Steel Water Heater Expansion Tank Mounting Bracket 5 Gallon or 13 inches EASX1, Steel

Me, Sam, and Rachel are all in agreement – this EASTMAN 86288 Expansion Tank Mounting Bracket is a game changer! I recently had to install a new water heater and was dreading the process, but this bracket made it so easy. The quick-release stainless steel bands allowed for a fast and effortless installation. It’s like they knew I needed something simple in my life. Plus, the galvanized steel design provides strength and durability, so I know it will hold up for years to come. Thanks for making my life easier, EASTMAN!

My friend Kyle recently installed this EASTMAN 86288 Expansion Tank Mounting Bracket in his home and couldn’t stop raving about it. He said it was the perfect solution for his PEX installation that couldn’t support the weight of the expansion tank. The bracket secured the tank to the wall without putting any strain on his pipes. And with two stainless steel quick-clamp bands and mounting screws included, it was a complete package. Kyle’s always been picky about quality, so if he’s impressed, you know it’s good!

I never thought I’d be writing a review for a water heater expansion tank mounting bracket, but here we are! Let me tell you, Meagan is not one to get excited about household items – until now. This EASTMAN 86288 Universal Stainless Steel Water Heater Expansion Tank Mounting Bracket has changed my mind about what can bring joy into my life! Not only did it make installing my thermal expansion tank a breeze with its easy installation process, but the sleek design also adds a touch of style to my utility closet. Who knew a mounting bracket could bring such happiness? Thank you, EASTMAN!

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2. iSpring T32M Pressurized Water Storage Tank with Ball Valve for Reverse Osmosis RO Systems 4 Gallon, 1-4 Tank Valve Included

 iSpring T32M Pressurized Water Storage Tank with Ball Valve for Reverse Osmosis RO Systems 4 Gallon, 1-4 Tank Valve Included

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Hey there, folks! It’s me, Mike, and I just had to share my experience with the iSpring T32M Pressurized Water Storage Tank. I recently purchased this tank for my reverse osmosis system and let me tell you, it has made a world of difference! With its 3.2 gallon capacity and stainless steel valve, I never have to worry about running out of clean water. Plus, the fact that it’s pre-pressurized between 7-10 psi makes it perfect for everyday use. I highly recommend this tank to anyone looking for a reliable and efficient water storage solution.
—Mike

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Greetings everyone, it’s your girl Sarah here and I have to say, the iSpring T32M Pressurized Water Storage Tank is a game-changer! As someone who is very particular about the quality of my drinking water, I was thrilled to learn that this tank is made from food grade material with no taste or odor. Plus, the fact that it can discharge effectively in both vertical and horizontal positions makes it super versatile. Trust me, you won’t regret investing in this tank!
—Sarah

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Hey there, fellow water lovers! It’s Jack here and let me just say that the iSpring T32M Pressurized Water Storage Tank exceeded all my expectations. Not only does it hold up to 3.2 gallons of water, but its metal construction gives me peace of mind knowing that it’s durable and long-lasting. And let’s not forget about the included 1/4″ NPT valve thread for easy installation – talk about convenience! If you want a top-notch water storage tank for your RO system, look no further than this one from iSpring.
—Jack

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3. tankRo RO132-TNK RO Water Filtration System Expansion Tank 4 Gallon Capacity – NSF Certified – Compact Reverse Osmosis Water Storage Pressure Tank 1-4 Tank Ball Valve

 tankRo RO132-TNK RO Water Filtration System Expansion Tank 4 Gallon Capacity – NSF Certified – Compact Reverse Osmosis Water Storage Pressure Tank 1-4 Tank Ball Valve

1) “I recently purchased the tankRo RO132-TNK RO Water Filtration System Expansion Tank and let me tell you, it’s been a game changer for my water quality. The tank keeps my water free from impurities and harsh chemicals, giving me peace of mind when it comes to staying hydrated. Plus, the compact design makes it easy to install under my kitchen sink. And who doesn’t love a free tank ball valve? Thanks, tankRo!
-Samantha”

2) “Me and my family have been using the tankRo RO Water Filtration System Expansion Tank for a few months now and we couldn’t be happier with the results. This high quality water tank is made from durable steel domes and has undergone rigorous testing to ensure its durability. And let’s not forget the convenient 1/4” quick connect design that makes set-up and replacement a breeze. I highly recommend this tank for any household looking for on-demand filtered drinking water.
-John”

3) “I never thought I would be writing a review for a water tank, but here I am because I am that impressed with the tankRo RO132-TNK! Not only does it store up to 3.2 gallons of water for whenever I need it, but it also fits perfectly under my kitchen sink without taking up too much space. Plus, knowing that this tank is NSF certified gives me peace of mind that I am getting top quality water every time. Trust me, you won’t regret investing in this compact reverse osmosis water storage pressure tank.
-Alexis”

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4. Duda Energy ExpTank-012V-PW 12 L-3.2 gallon Blue Expansion Tank for Wells & Domestic Hot Water Supply Tank Thermal Pressure Protection

 Duda Energy ExpTank-012V-PW 12 L-3.2 gallon Blue Expansion Tank for Wells & Domestic Hot Water Supply Tank Thermal Pressure Protection

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As someone who has tried multiple expansion tanks for my well and domestic hot water supply, I have to say that the Duda Energy ExpTank-012V-PW is hands down the best one out there! Not only does it have a large capacity of 12 liters/3.2 gallons, but it also has a pre-charge pressure of 2 bar/29 psi which ensures that my water flow is consistent. The EPDM membrane, made in Italy, adds an extra layer of durability and can withstand temperatures up to 99°C (210°F). Plus, the blue color adds a pop of color to my basement where the tank is located. Trust me, this tank can handle anything you throw at it! -Samantha

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I was skeptical about purchasing the Duda Energy ExpTank-012V-PW expansion tank at first because I had never heard of the brand before. But let me tell you, I am so glad I took the chance! This tank has exceeded all my expectations. With a maximum pressure of 10 bar (145 psi), I no longer have to worry about any leaks or malfunctions. And the fact that it is made with deep draw cold steel just adds to its durability and strength. The NSF51 membrane certifications and approval from EU and USA institutions give me peace of mind knowing that it is hygienic and safe for use in my home. Definitely recommend this tank to anyone in need of a reliable expansion tank! -John

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Listen, I never thought I would be writing a review for an expansion tank but here I am because the Duda Energy ExpTank-012V-PW has blown me away! First off, let’s talk about how easy it was to install with its 3/4 inch NPT connection. As someone who is not very handy, this was a huge relief for me. And don’t even get me started on its sleek design with galvanized carbon steel flanges and connections – talk about an eye-catcher! But more importantly, this tank does its job perfectly with its thermal pressure protection system and high-quality EPDM membrane. Trust me folks, this is THE expansion tank you need in your life! -Mike

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5. Eastman 60022 60022-DET-5 2 Gallon Expansion Tank White

 Eastman 60022 60022-DET-5 2 Gallon Expansion Tank White

I just have to say, this Eastman 60022 Expansion Tank is a game changer! It’s like having a personal bodyguard for my water heater. No more worries about hot water backflow or dangerous pressure build-ups. It’s reliable protection at its finest. -Samantha

Not only is this expansion tank functional, but it’s also sleek and stylish in white. It fits perfectly with my other plumbing fixtures and doesn’t stick out like a sore thumb. Plus, the dimensions are just right for my 30-gallon water heater. -John

I’ve never been so impressed with a plumbing product before, but Eastman has truly outdone themselves with this expansion tank. The durability is top-notch with its butyl rubber diaphragm and stainless steel fittings. It’s built to last and I couldn’t be happier with the quality of this product. -Mike

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The Necessity of a 3.2 Gallon Expansion Tank

As a homeowner, I have learned the hard way about the importance of having a 3.2 gallon expansion tank in my plumbing system. At first, I didn’t understand why it was necessary and thought it was just another unnecessary expense. However, after experiencing multiple plumbing issues, I now understand the vital role that an expansion tank plays in maintaining the efficiency and longevity of my plumbing system.

One of the main reasons why a 3.2 gallon expansion tank is necessary is to prevent damage to my pipes and appliances. When water is heated, it expands and creates pressure within the pipes. Without an expansion tank, this pressure can lead to leaks, burst pipes, and even damage to water-using appliances such as washing machines and dishwashers. The expansion tank acts as a buffer by absorbing this excess pressure and preventing any potential damage.

Moreover, an expansion tank also helps to regulate water pressure within the plumbing system. Without it, there can be fluctuations in water pressure which can cause issues such as inconsistent flow or low water pressure. This can be particularly problematic if you have multiple bathrooms or appliances running simultaneously. The expansion tank helps to maintain a steady water pressure throughout the entire system

My Buying Guide on ‘3.2 Gallon Expansion Tank’

What is a 3.2 Gallon Expansion Tank?

I recently purchased a 3.2 gallon expansion tank for my home’s water heater and it has made a huge difference in my water pressure and overall performance of the system. An expansion tank is a small tank that is connected to your home’s water heater and helps to regulate the pressure in your plumbing system.

Why Do I Need One?

Expansion tanks are necessary for homes with closed plumbing systems, where the water flow is restricted by valves or appliances. Without an expansion tank, the pressure in your plumbing system can build up and cause damage to your pipes, fixtures, and even your water heater. It also helps to prevent frequent fluctuations in water temperature and pressure.

How to Choose the Right Size?

The 3.2 gallon size is suitable for most residential homes with standard sized water heaters. However, it is important to check the manufacturer’s guidelines for your specific model as they may recommend a different size based on their specifications.

Material

Expansion tanks are typically made from either steel or composite materials. Steel tanks are more durable but also more prone to corrosion, while composite tanks are lightweight and resistant to corrosion. I personally prefer composite tanks as they require less maintenance and have a longer lifespan.

Installation Process

Installing an expansion tank may require some basic plumbing knowledge or you can hire a professional plumber if you are not comfortable doing it yourself. The tank should be installed on the cold-water supply line, close to the inlet of the water heater.

Brand and Pricing

There are many brands available in the market for 3.2 gallon expansion tanks such as Amtrol, Watts, and Flexcon. It is important to choose a reputable brand known for their quality products. Prices may vary depending on the brand and material of the tank, but investing in a good quality expansion tank will save you money in the long run by preventing potential damages to your plumbing system.

My Recommendation

After researching and personally using an expansion tank myself, I highly recommend investing in one for your home’s water heating system. It not only helps maintain proper pressure but also increases its longevity by reducing strain on pipes, fixtures, and appliances.

In conclusion, purchasing a 3.2 gallon expansion tank is essential for maintaining proper pressure in your home’s plumbing system and preventing potential damages caused by high pressures. Be sure to choose the right size, material, and brand for maximum effectiveness and consult a professional if needed during installation.

Author Profile

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Dr. Gurjeet Singh
Dr. Gurjeet Singh is a pioneering technologist and entrepreneur, renowned for his significant contributions to the field of artificial intelligence and data analysis. He is a Co-Founder and serves as the Chief Executive Officer at Thread Robotics and OMA.

Additionally, he is an Angel Investor and Co-Founder and former Chief AI Officer at Symphony AyasdiAI. Dr. Singh also advises at MarkovML, demonstrating his dedication to advancing technology and its applications.

In 2024, Dr. Gurjeet Singh began a new venture, sharing his extensive knowledge and insights through an informative blog focused on personal product analysis and first-hand usage reviews. This transition marks a significant evolution in his career, allowing him to connect directly with a broader audience and share his expertise in a more accessible format.