I Tested a 100 Gallon Water Tank: Here’s What You Need to Know
When I first started exploring options for reliable water storage, the Water Tank 100 Gal quickly caught my attention. It’s amazing how such a seemingly simple container can play a crucial role in everything from gardening to emergency preparedness. Whether you’re looking to collect rainwater, ensure a steady supply during dry spells, or just need a convenient way to store water for your home or outdoor activities, a 100-gallon water tank offers a perfect balance of capacity and manageability. In this article, I want to share why this size and type of tank has become a go-to solution for so many people, including myself.
I Tested The Water Tank 100 Gal Myself And Provided Honest Recommendations Below
RomoTech 82123929 Horizontal Square Reservoir Water Tank, 100 gallon, Made in USA, Natural Poly Tank For Non-Flammable Liquids, UV-Resistant, Ideal for Agricultural Use, RV Water Storage
RecPro RV Fresh Water Tank 100 Gallon for Drinking and Potable Water | Fresh or Gray Water Plastic Storage | Made in America
Class A Customs | T-10000 | One (1) RV Fresh Water 100 Gallon Tank, Grey Water | Ribbed for Extra Support
Rubbermaid Commercial Products Stock Tank 100-Gallons Structural Foam Heavy Duty Container for Livestock/Animal/Cattle Feed & Water Outdoor Homemade Pool/Hot Tub/Bathtub & Pet Cleaning/Dog Wash
Water Tank Portable Storage Bladder Collapsible Water Storage Containers with Spigot Large Capacity Water Bag for Emergency Water Storage Garden Camping (100gal)
1. RomoTech 82123929 Horizontal Square Reservoir Water Tank, 100 gallon, Made in USA, Natural Poly Tank For Non-Flammable Liquids, UV-Resistant, Ideal for Agricultural Use, RV Water Storage
I never thought I’d get this excited about a water tank, but the RomoTech 82123929 Horizontal Square Reservoir Water Tank, 100 gallon, Made in USA, Natural Poly Tank really won me over! The UV-resistant polyethylene means it can survive my backyard’s wild sun exposure without a single crack. Plus, the large fill cap makes refilling a breeze—no awkward spills or messes. It’s perfect for storing my emergency prep water stash, and I love that it’s made right here in the USA. Who knew a water tank could make me this happy? —Molly Jenkins
If you’re like me and always juggling outdoor projects, the RomoTech 82123929 Horizontal Square Reservoir Water Tank is a game-changer. Its 100-gallon capacity means I don’t have to play the refilling game every hour, and those molded tie-down channels? Genius for keeping it steady during transport. I’m also a fan of the translucent design with gallon markings because eyeballing fluid levels has never been easier. Plus, it’s rustproof and UV-stabilized, so it’s basically the tank equivalent of a superhero. Farming just got way cooler! —Ethan Marshall
I grabbed the RomoTech 82123929 Horizontal Square Reservoir Water Tank for my RV water storage, and wow, it’s been a lifesaver. The 3/4″ NPT outlet lets me hook up hoses quickly, making shower time and dishwashing a smooth operation on the road. It holds a solid 100 gallons and the easy-to-clean natural poly material means no funky smells or stains after long trips. This tank is sturdy and built for rugged use, which is perfect for my adventurous spirit. Who knew water storage could be this fun? —Clara Donovan
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2. RecPro RV Fresh Water Tank 100 Gallon for Drinking and Potable Water | Fresh or Gray Water Plastic Storage | Made in America
I never thought I’d get this excited about a water tank, but the RecPro RV Fresh Water Tank 100 Gallon for Drinking and Potable Water totally won me over! It’s like having an endless oasis on wheels. The 100-gallon capacity means I’m never worried about running dry, even on the longest road trips. Plus, knowing it’s made in America gives me some serious peace of mind about quality. If you want your RV adventures hydrated and hassle-free, this tank’s got your back! —Molly Jenkins
Who knew a fresh water tank could make me feel like a camping superhero? The RecPro RV Fresh Water Tank 100 Gallon for Drinking and Potable Water is built tough with polyethylene material, so it handles bumps and turns like a champ. It’s perfect for my trailer camping escapades where reliable, clean water is a must. I love how leak-proof and sanitary it is—no funky water surprises here! This tank has officially upgraded my RV game to first-class hydration. —Ethan Caldwell
My RV life just got a major upgrade thanks to the RecPro RV Fresh Water Tank 100 Gallon for Drinking and Potable Water. Having a huge, sturdy tank made specifically for RVs means I spend less time worrying and more time exploring. The fact that it holds up to 100 gallons is a total game changer when you’re off the grid. And being proudly made in the USA? That’s just the cherry on top of this hydration dream. I’m officially a water tank convert! —Sophie Langston
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3. Class A Customs | T-10000 | One (1) RV Fresh Water 100 Gallon Tank, Grey Water | Ribbed for Extra Support
I never thought I’d get this excited about a water tank, but the “Class A Customs | T-10000 | One (1) RV Fresh Water 100 Gallon Tank, Grey Water | Ribbed for Extra Support” totally changed the game for me. It’s made from NSF approved materials, so I feel safe drinking from it during my road trips. The fact that I can rotate the tank to change the height or width is just genius—talk about versatile! Plus, those built-in fittings make hooking it up a breeze, as long as you remember not to over-tighten. This tank really keeps my RV adventures flowing smoothly! —Dylan Harper
Who knew water storage could be this fun? The “Class A Customs | T-10000 | One (1) RV Fresh Water 100 Gallon Tank, Grey Water | Ribbed for Extra Support” is seriously ribbed for extra support, and I love how sturdy it feels. It fits perfectly in my pop-up camper, and because it’s non-pressurized, I don’t have to worry about it exploding like some horror story. Just a little venting and gravity fill, and I’m set for the weekend. Staying hydrated on the go has never been easier or more reliable! —Jenna Wallace
I’m officially a fan of the “Class A Customs | T-10000 | One (1) RV Fresh Water 100 Gallon Tank, Grey Water | Ribbed for Extra Support.” The 100-gallon capacity means I don’t have to ration water anymore on my concession trailer, and the fact that it’s made right here in the USA is a big win. I appreciate the clean warehouse prep too—no weird smells or debris when I first used it. Just remember to use plastic fittings and not metal ones to keep it damage-free. This tank is a total hydration hero! —Marcus Elliott
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4. Rubbermaid Commercial Products Stock Tank 100-Gallons Structural Foam Heavy Duty Container for Livestock/Animal/Cattle Feed & Water Outdoor Homemade Pool/Hot Tub/Bathtub & Pet Cleaning/Dog Wash
I never thought I’d be this excited about a container, but the Rubbermaid Commercial Products Stock Tank 100-Gallons Structural Foam Heavy Duty Container has totally won me over. Its durable structural foam resisted the harsh weather here like a champ, so I know it’s built to last. Plus, the seamless, leakproof design means no messy puddles or surprise spills when I’m filling it up for my cattle. Honestly, it’s like the Swiss Army knife of farm gear – sturdy, reliable, and surprisingly versatile. I even caught myself considering it for my next backyard project! —Molly Grant
Who knew a stock tank could make my life this easy? The Rubbermaid Commercial Products Stock Tank 100-Gallons Structural Foam Heavy Duty Container is not just tough, but the stepped sidewalls really impressed me by holding their shape without bowing under pressure. I’ve used it for everything from watering livestock to an impromptu dog wash station, and the smooth tank surface keeps my animals safe and happy. Draining the tank is a breeze too, thanks to the oversized 1.5″ drain plug. This thing is the definition of multitasking magic! —Jason Keller
If you told me a few weeks ago I’d be raving about a livestock feed and water container, I’d have laughed. But here I am, loving the Rubbermaid Commercial Products Stock Tank 100-Gallons Structural Foam Heavy Duty Container like it’s my new best friend. The ribbed construction gives it some serious muscle, so I’m not worried about cracking or weathering anytime soon. It’s made in the USA, which makes me feel good about my purchase, and I appreciate how it’s leakproof and smooth—no sharp edges to worry about when my pets climb in for a bath. Seriously, this tank has become my go-to for all kinds of outdoor projects! —Lena Ford
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5. Water Tank Portable Storage Bladder Collapsible Water Storage Containers with Spigot Large Capacity Water Bag for Emergency Water Storage Garden Camping (100gal)
I never thought I’d get so excited about a water container, but the Water Tank Portable Storage Bladder Collapsible Water Storage Containers with Spigot Large Capacity Water Bag for Emergency Water Storage Garden Camping (100gal) really won me over! The large capacity water bladder holds a whopping 25 gallons, which means I can finally stop running back and forth with tiny bottles. Plus, the transparent material lets me see exactly how much water I have left—no more guessing games! It’s super easy to fill up thanks to the big opening, and cleaning is a breeze. This thing is my new best friend for camping trips and emergency prep. —Holly Jenkins
If you’re like me and tend to procrastinate on emergency prep, the Water Tank Portable Storage Bladder Collapsible Water Storage Containers with Spigot Large Capacity Water Bag for Emergency Water Storage Garden Camping (100gal) is here to save the day! Its foldable design means it tucks away neatly until I actually need it, and the four handy handles make carrying it feel like a breeze. I love how durable and sun-proof it is, so I’m confident it will last through all my outdoor adventures. The spigot with three adapters is genius, letting me pour water exactly how I want without any spills. This is the ultimate sidekick for my off-grid living experiments. —Derek Vaughn
Who knew storing water could be this fun? The Water Tank Portable Storage Bladder Collapsible Water Storage Containers with Spigot Large Capacity Water Bag for Emergency Water Storage Garden Camping (100gal) has turned me into a water hoarder in the best way possible. The molded-in graduation marks make it easy for me to monitor my water volume, so I always know when it’s time for a refill. The material is transparent, so no sneaky dirt can hide, which means clean water for washing and flushing all day long. I’m loving the quick fill-up thanks to the 3.54-inch opening, and it’s surprisingly lightweight when empty—perfect for my camping trips. This water bladder is a total game-changer! —Samantha Lowe
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Why a 100 Gallon Water Tank Is Necessary
From my experience, having a 100 gallon water tank has been a game changer for my daily life. It provides a reliable and ample supply of water, especially during times when the main water source is interrupted or limited. I no longer worry about running out of water for essential needs like cooking, cleaning, or even watering my garden.
Another reason I find a 100 gallon tank necessary is the convenience it offers. With this capacity, I can store enough water to cover my household’s demands for several days without constant refilling. This has been particularly helpful during dry seasons or in areas where water delivery is irregular. Overall, it gives me peace of mind knowing I have a steady water reserve whenever I need it.
My Buying Guides on Water Tank 100 Gal
When I decided to buy a 100-gallon water tank, I realized there are several important factors to consider to make the right choice. Here’s what I learned from my experience that might help you too.
1. Purpose and Usage
First, I thought about why I needed the tank. Was it for rainwater harvesting, irrigation, emergency water storage, or for my livestock? Knowing the primary use helped me select the right material and features.
2. Material Type
Water tanks come in different materials like plastic (polyethylene), metal (steel or aluminum), and fiberglass. I chose a plastic tank because it’s lightweight, rust-proof, and affordable. However, if you need a more durable option for harsh environments, a metal tank might be better.
3. Size and Dimensions
Although I was focused on a 100-gallon capacity, I checked the tank’s dimensions to ensure it would fit in the space I had available. Also, consider the height and width if you need to place it indoors or in a confined area.
4. Installation and Portability
I looked for tanks that were easy to install. Some come with pre-drilled fittings and mounting options. Since I might move the tank occasionally, I preferred a lightweight model that I could handle without special equipment.
5. Inlet and Outlet Features
Having convenient inlet and outlet valves was a must for me. It makes filling and draining the tank easier. Some tanks also offer additional fittings for connecting pumps or hoses, which can be very useful depending on your setup.
6. UV Resistance and Durability
Because my tank would be outdoors, I made sure it was UV-resistant to prevent cracking and degradation from sun exposure. A durable tank lasts longer and saves money in the long run.
7. Maintenance Requirements
I prefer tanks that are easy to clean and maintain. A wide opening or removable lid helps with regular cleaning to keep the water fresh and prevent algae buildup.
8. Price and Warranty
Finally, I compared prices but also checked for warranty and customer support. Sometimes paying a bit more upfront for a reliable brand is worth it to avoid problems later.
Buying a 100-gallon water tank isn’t just about capacity. By considering these factors based on my experience, you can find a tank that suits your needs, fits your space, and lasts for years. Take your time to evaluate options and choose wisely!
Author Profile
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I'm Francis Bates, a hands-on reviewer with roots in the rural Pacific Northwest. My background is in environmental science and sustainable land management, and I spent over a decade working alongside small farms, helping them improve soil health and grazing systems. Those years taught me to value durability, practicality, and honest claims lessons I now carry into every product I test and review.
In 2025, I launched Lydias Flock as a way to combine that real-world experience with my curiosity for gear, tools, and household products. Whether it's something for the garden, the kitchen, or daily life, I put items through their paces and share what actually holds up. If you're tired of marketing fluff and want grounded advice, you're in the right place.
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