Choosing the right water tank for a van build involves balancing capacity, durability, ease of installation, and cost. The Class A Customs T-3687 RV Water Tank stands out as the best overall for its combination of size and reliability. For those seeking a compact, easy-to-install option, the ICON 20-Gallon Tank makes a strong case, while the RomoTech 50-Gallon Tank appeals to high-capacity needs. Each choice involves tradeoffs—larger tanks are heavier and more expensive, while smaller tanks may require more frequent refills. Continue reading to explore these options in detail and find the best fit for your van build.
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Key Takeaways
- Capacity varies widely, with options from 20 to over 50 gallons, impacting weight and refilling frequency.
- Material choice, mainly polyethylene, offers durability but adds weight; BPA-free options enhance safety.
- Shape and size influence installation flexibility, especially in tight van spaces or wheel wells.
- Higher capacity tanks tend to be bulkier and more expensive but reduce refill frequency for long trips.
- Most premium models include features like integrated fittings and reinforced construction for longevity.
| Class A Customs T-3687 RV Fresh and Gray Water 36 Gallon Tank for Sprinter Vans |  | Best Overall for Versatility and Off-Road Readiness | Capacity: 36 gallons | Material: NSF Approved | Thickness: 7/32 inches | VIEW ON AMAZON | See Our Full Breakdown |
| 36 Gallon RV Fresh Water Tank – BPA-Free, Cube Shape, Made in USA |  | Best Value for Impact-Resistant, Easy-to-Install Potable Water Storage | Capacity: 36 gallons | Dimensions: 37″ x 16″ x 15″ | Material: BPA-Free plastics | VIEW ON AMAZON | See Our Full Breakdown |
| TORVA 33-Gallon Non-Standard RV Wheel Well Fresh Water Storage Tank for Sprinter, Transit, and ProMaster Vans |  | Best for Space-Maximizing Van Conversions | Capacity: 33 gallons | Material: BPA-free polyethylene | Finish: Matte | VIEW ON AMAZON | See Our Full Breakdown |
| ICON 12724 Fresh Water Tank, WT2460, 20 Gallons, 39x16x8 inches |  | Best for Small Spaces and Lightweight Needs | Capacity: 20 gallons | Dimensions: 39x16x8 inches | Fittings: 1/2″ fittings | VIEW ON AMAZON | See Our Full Breakdown |
| Class A Customs T-2955 RV Fresh and Gray Water 29 Gallon Tank for Transit Sprinter Van, Camper, Food Truck |  | Best for Seamless, Safe Water Storage in Medium-Sized Vans | Capacity: 29 gallons | Material: Medium Density Polyethylene (MDPE) | Color: Creamy White | VIEW ON AMAZON | See Our Full Breakdown |
| RomoTech 50 Gallon Square Polyethylene Water Storage Tank |  | Best Overall for Versatile Water Storage | Capacity: 50 gallons | Material: Polyethylene | Shape: Square | VIEW ON AMAZON | See Our Full Breakdown |
| Alpha Systems 28″ x 54″ x 7″ Fresh Water Tank – 45 Gallon Capacity |  | Best for RVs with Customizable Fittings | Dimensions: 28″ x 54″ x 7″ | Capacity: 45 Gallons | Material: HDPE | VIEW ON AMAZON | See Our Full Breakdown |
| 20 Gallon Water Storage Tank for RV and Camping |  | Best Compact Tank for Small Vans and Off-Grid Use | Capacity: 20 gallons | Dimensions: 47″ x 16″ x 11″ | Material: BPA-free, food-grade LLDPE | VIEW ON AMAZON | See Our Full Breakdown |
| TORVA Sprinter 2500 & Transit 33-Gallon RV Wheel Well Water Tank |  | Best Space-Optimized Tank for Sprinter and Transit Vans | Capacity: 33 gallons | Material: BPA-free, linear low-density polyethylene | Ports: 4 x 1-1/2″ NPT, 4 x 1/2″ NPT (requires drilling) | VIEW ON AMAZON | See Our Full Breakdown |
| 57 Gallon RV Fresh Water Tank, Cube Shape, BPA-Free, Made in USA |  | Best Large Capacity Tank for Extended RV Use | Capacity: 57 gallons | Dimensions: 43″ x 25″ x 13″ | Material: BPA-Free plastics | VIEW ON AMAZON | See Our Full Breakdown |
| 34 Gallon RV Concession Fresh and Gray Water Holding Tank for Sprinter Cargo Vans |  | Best for Compact, Over-Wheel Well Fitment | Capacity: 34 gallons | Material: Medium Density Polyethylene (MDPE) | Color: Creamy White | VIEW ON AMAZON | See Our Full Breakdown |
| Class A Customs T-5000 50 Gallon Fresh Water Holding Tank for RV and Concession |  | Best for Larger Capacity and Versatile Installation | Capacity: 50 gallons | Material: NSF Approved | Dimensions: 38.25″ x 14.25″ x 22.25″ | VIEW ON AMAZON | See Our Full Breakdown |
| water tank for van build | Capacity | Material | Fittings | Dimensions |
|---|---|---|---|---|
| Class A Customs T-3687 RV Fres | 36 gallons | NSF Approved | 4 installed fittings | — |
| 36 Gallon RV Fresh Water Tank | 36 gallons | BPA-Free plastics | Two 1.5" balloon style threaded female NPT, Two 0.5" threaded female NPT | 37" x 16" x 15" |
| TORVA 33-Gallon Non-Standard R | 33 gallons | BPA-free polyethylene | — | — |
| ICON 12724 Fresh Water Tank | 20 gallons | — | 1/2" fittings | 39x16x8 inches |
| Class A Customs T-2955 RV Fres | 29 gallons | Medium Density Polyethylene (MDPE) | — | — |
| RomoTech 50 Gallon Square Poly | 50 gallons | Polyethylene | — | — |
| Alpha Systems 28" x 54" x 7" F | 45 Gallons | HDPE | — | 28" x 54" x 7" |
| 20 Gallon Water Storage Tank f | 20 gallons | BPA-free, food-grade LLDPE | — | 47" x 16" x 11" |
| TORVA Sprinter 2500 & Transit | 33 gallons | BPA-free, linear low-density polyethylene | — | — |
| 57 Gallon RV Fresh Water Tank | 57 gallons | BPA-Free plastics | Two 1.5" threaded NPT, Two 0.5" threaded NPT | 43" x 25" x 13" |
| 34 Gallon RV Concession Fresh | 34 gallons | Medium Density Polyethylene (MDPE) | One 1.5" Female NPT, three 0.5" Female NPT | — |
| Class A Customs T-5000 50 Gall | 50 gallons | NSF Approved | Two 1.5" Female NPT, Two 0.5" Female NPT | 38.25" x 14.25" x 22.25" |
More Details on Our Top Picks
Class A Customs T-3687 RV Fresh and Gray Water 36 Gallon Tank for Sprinter Vans
This 36-gallon tank stands out for its NSF-approved materials and multiple fittings, making it highly adaptable for both fresh and gray water needs in diverse mobile setups. Compared with the 36 Gallon RV Fresh Water Tank – BPA-Free, it offers more fittings and better suitability for off-road applications, but it requires venting and isn’t suitable for pressurized use. Its robust construction and multiple fittings make plumbing straightforward, especially for those with complex setups or off-grid ambitions. The main tradeoff is that it must be vented, and its fit depends heavily on vehicle dimensions, so verifying measurements beforehand is essential.
Pros:- Made from NSF-approved, safe materials ensuring water safety
- Includes multiple fittings for flexible plumbing configurations
- Suitable for both fresh and gray water in off-road or concession settings
Cons:- Requires venting during use, adding installation complexity
- Cannot be sealed with garden hose or used as a pressurized tank
Best for: Van converters needing a durable, multi-purpose tank suitable for off-road and concession use
Not ideal for: Casual campers seeking an easy-to-install, simple water solution without complex plumbing or venting needs
- Capacity:36 gallons
- Material:NSF Approved
- Thickness:7/32 inches
- Fittings:4 installed fittings
- Application:Fresh and Gray Water Storage
- Manufactured in:USA, Elkhart, Indiana
Our verdict“Best suited for those needing a rugged, versatile tank with multiple fittings for off-road or commercial applications.”
36 Gallon RV Fresh Water Tank – BPA-Free, Cube Shape, Made in USA
This 36-gallon tank provides a straightforward, hygienic solution with BPA-free plastics and industry-standard fittings, making it ideal for RVers and campers prioritizing safety and durability. Unlike the Class A Customs T-3687, it offers a simple cube shape for easy placement and impact resistance, but it lacks included hardware, requiring additional purchases for installation. Its impact-resistant, BPA-free material ensures safe drinking water and longevity, but the need for annual cleaning and maintenance can be burdensome. This tank suits those seeking reliable, safe water storage without complex plumbing features.
Pros:- Made from durable, impact-resistant, BPA-Free plastics
- Easy to install with multiple fitting options
- Meets industry standards for hygiene and safety
- Made in the USA
Cons:- Does not include hardware, hoses, or fittings
- Requires annual cleaning and maintenance
Best for: RVers and campers looking for a durable, safe, and easy-to-install water tank on a budget
Not ideal for: Those requiring multiple fittings or complex plumbing configurations without additional setup efforts
- Capacity:36 gallons
- Dimensions:37″ x 16″ x 15″
- Material:BPA-Free plastics
- Made in:USA
- Fittings:Two 1.5″ balloon style threaded female NPT, Two 0.5″ threaded female NPT
Our verdict“Ideal for buyers prioritizing impact resistance and safety at a budget-friendly price point.”
TORVA 33-Gallon Non-Standard RV Wheel Well Fresh Water Storage Tank for Sprinter, Transit, and ProMaster Vans
This 33-gallon BPA-free tank is specifically designed to fit over the wheel well, making it an excellent choice for optimizing space in Sprinter, Transit, and ProMaster vans. Compared with the larger Class A Customs T-3687, it sacrifices some capacity but excels in fitting tight van spaces without sacrificing water volume. Its impact-resistant polyethylene construction ensures durability on rugged trips, and the multiple port options provide flexible plumbing. However, it cannot be pressurized or hung with straps, and it requires thorough rinsing and cleaning before use. It’s ideal for those with limited space who want a custom-fit water solution.
Pros:- Custom-fit for popular van models, maximizing available space
- Durable impact-resistant polyethylene
- Multiple ports for versatile plumbing
- Food-grade, BPA-free material ensures safe drinking water
Cons:- Cannot be pressurized or hung with straps
- Requires rinsing and regular cleaning
- Filter needed for drinking water
Best for: Van conversions that need a compact, space-efficient water tank fitting over wheel wells
Not ideal for: Users requiring larger capacity or pressurized plumbing setups
- Capacity:33 gallons
- Material:BPA-free polyethylene
- Finish:Matte
- Ports:4 × 1-1/2″ NPT, 4 × 1/2″ NPT (optional)
Our verdict“Best for space-conscious van builders seeking a durable, custom-fit water tank that maximizes interior space.”
ICON 12724 Fresh Water Tank, WT2460, 20 Gallons, 39x16x8 inches
The ICON WT2460 offers a compact, roto-molded design with a sturdy build, making it suitable for small van conversions or auxiliary water storage. Compared to the larger Class A Customs T-3687, its 20-gallon capacity is limited but ideal for minimalistic setups or backup tanks. The roto-molded construction ensures durability, but it’s designed solely for water storage and lacks additional features like multiple fittings or complex plumbing options. Its smaller size makes installation straightforward, but it may require frequent refilling for longer trips. This pick is perfect for those prioritizing a lightweight, durable tank in tight spaces.
Pros:- Durable roto-molded construction
- Sturdy and reliable design
- Generous 20-gallon capacity in a compact size
Cons:- Limited to water storage only
- No additional features or fittings
Best for: Vans or small RVs needing a reliable, space-efficient water tank for basic needs
Not ideal for: Users with high water demand or requiring multiple water connections
- Capacity:20 gallons
- Dimensions:39x16x8 inches
- Fittings:1/2″ fittings
- Construction:Roto-molded
Our verdict“Ideal for small van conversions or as a backup tank where space and weight are limited.”
Class A Customs T-2955 RV Fresh and Gray Water 29 Gallon Tank for Transit Sprinter Van, Camper, Food Truck
This 29-gallon tank from Class A Customs features seamless, one-piece MDPE construction, making it highly durable and suitable for fresh and gray water storage in Transit, Sprinter, or food trucks. Compared with the larger 36-gallon options, it’s more tailored for smaller van conversions where space is at a premium, but it still offers reliable, safe water storage. It requires professional installation to ensure proper fitting, and it must be vented—similar to the Class A Customs T-3687. The absence of included fittings means extra effort for setup, but its seamless design reduces leak risks. It’s best for those who want a durable, safe tank that fits in tighter spaces with a focus on quality construction.
Pros:- Made from NSF-approved, food-safe MDPE
- Seamless, one-piece construction for durability
- Fits over wheel wells in Sprinter vans
Cons:- Requires professional installation for proper fitting
- No fittings included, additional setup required
- Must be vented and not pressurized
Best for: Medium-sized van owners needing a durable, seamless water tank with reliable safety features
Not ideal for: DIY enthusiasts seeking a tank with included fittings or simple installation
- Capacity:29 gallons
- Material:Medium Density Polyethylene (MDPE)
- Color:Creamy White
- Thickness:7/32 inches
Our verdict“Best for owners of smaller vans seeking a high-quality, seamless water tank with durable construction.”
RomoTech 50 Gallon Square Polyethylene Water Storage Tank
This 50-gallon square polyethylene tank stands out for its durability and ease of use, especially when compared with the smaller 20-gallon tank, which might be easier to fit but offers less capacity. Its UV-stabilized construction ensures longevity outdoors, making it suitable for farm or trailer setups. The molded graduations make level monitoring straightforward, while the secure tie-down channels facilitate safe transport. However, it only handles non-flammable liquids, and chemical compatibility needs verification—limiting its versatility for certain uses. For those needing a robust, large-capacity tank with simple monitoring, this model is a reliable choice.
Pros:- Durable UV-stabilized polyethylene construction
- Easy to monitor liquid level with molded graduations
- Secure tie-down channels facilitate transport
Cons:- Limited to non-flammable liquids only
- Requires chemical compatibility verification
Best for: Farmers or trailer owners requiring durable, UV-stabilized water storage with straightforward fill and drain features.
Not ideal for: Users needing chemical-resistant tanks or handling flammable liquids, as it’s limited to non-flammable water storage.
- Capacity:50 gallons
- Material:Polyethylene
- Shape:Square
- UV Stabilized:Yes
- Inlet Size:5-inch lid
- Outlet Size:3/4-inch NPT
- Temperature Limit:Up to 140°F
Our verdict“Ideal for those needing a large, durable outdoor water tank for non-flammable liquids in farm or trailer settings.”
Alpha Systems 28″ x 54″ x 7″ Fresh Water Tank – 45 Gallon Capacity
This 45-gallon HDPE freshwater tank is designed specifically for RVs, offering a good balance of capacity and space efficiency. Compared with the larger 57-gallon cube tank, it’s more compact for tighter RV layouts but provides nearly similar capacity. Its uniform wall thickness enhances durability, and the customizable fittings add versatility for different plumbing configurations. The included 12-month warranty offers peace of mind. However, it’s limited to RV use, and the lack of detailed installation instructions can pose challenges for DIY setup. This pick suits RV owners seeking a tough, adaptable water tank that fits standard recreational vehicles.
Pros:- Durable and resistant to wear
- Customizable fittings for versatile plumbing
- Includes a 12-month warranty
Cons:- Limited to RV use
- No detailed installation instructions provided
Best for: RV owners needing a durable, customizable freshwater tank that fits standard RV spaces.
Not ideal for: Those with non-RV applications or seeking tanks with comprehensive installation guidance, as instructions are limited.
- Dimensions:28″ x 54″ x 7″
- Capacity:45 Gallons
- Material:HDPE
- Warranty:12 months
Our verdict“A dependable choice for RV owners looking for a durable, customizable freshwater tank with good capacity.”
20 Gallon Water Storage Tank for RV and Camping
Designed for smaller vans and off-grid setups, this 20-gallon tank offers a practical solution for limited spaces. Compared with the larger 57-gallon cube tank, it’s much easier to fit into compact van layouts like Sprinter or Transit. Its BPA-free, food-grade material guarantees safe drinking water, making it ideal for extended trips where water quality matters. The vented, non-pressurized design simplifies installation but requires careful venting and maintenance to prevent issues. While it’s not suitable for pressurized systems or hanging, its size and material make it perfect for those seeking safe, portable water storage for off-grid adventures.
Pros:- Custom fit for compact vans like Sprinter, Transit, and ProMaster
- Large 20-gallon capacity suitable for extended trips
- Made from safe, food-grade, BPA-free material
Cons:- Requires proper venting for safe operation
- Not suitable for pressurization or hanging applications
Best for: Solo travelers or small families needing a safe, portable water tank for compact vans or off-grid trips.
Not ideal for: Users requiring pressurized or hanging tanks, or larger capacity needs for extended stays, as it’s limited to 20 gallons.
- Capacity:20 gallons
- Dimensions:47″ x 16″ x 11″
- Material:BPA-free, food-grade LLDPE
- Application:RV, camper van, off-grid
Our verdict“An excellent, space-efficient water solution for off-grid travelers and small van owners prioritizing water safety.”
TORVA Sprinter 2500 & Transit 33-Gallon RV Wheel Well Water Tank
This 33-gallon tank is tailored for Sprinter 2500 and Ford Transit vans, making it an ideal fit over the wheel well to maximize space. Unlike the bulkier 57-gallon cube tank, it uses space efficiently, helping maintain storage capacity elsewhere. Made from BPA-free, food-grade material, it ensures water safety and longevity. Multiple ports provide flexible plumbing options, though some require drilling for installation, which adds complexity. The elevated design helps with installation but needs proper venting since it’s not pressurized. This model is perfect for van owners who want a custom-fit, space-saving solution without sacrificing capacity.
Pros:- Custom fit for Sprinter 2500 and Transit vans
- Optimizes space over the wheel well
- Made from BPA-free, food-grade material
- Flexible port configuration
Cons:- Requires elevation of 3.5 inches for installation
- Some ports need drilling for setup
Best for: Van owners with Sprinter 2500 or Transit models seeking space-efficient, custom-fit water storage.
Not ideal for: Users seeking a pressurized or ready-to-install solution, as some ports require drilling and it’s not pressurized.
- Capacity:33 gallons
- Material:BPA-free, linear low-density polyethylene
- Ports:4 x 1-1/2″ NPT, 4 x 1/2″ NPT (requires drilling)
- Installation Height:Elevated 3.5 inches
Our verdict“An ideal, space-efficient water tank for van owners who want a tailored fit over the wheel well in Sprinter or Transit vans.”
57 Gallon RV Fresh Water Tank, Cube Shape, BPA-Free, Made in USA
This 57-gallon cube-shaped tank offers ample capacity for long trips, especially when compared to the smaller 45-gallon tank. Made from BPA-free, impact-resistant plastics, it prioritizes safety and durability. Multiple fitting options enable flexible installation, though the lack of included hardware and fittings means buyers should plan for additional accessories. Its impact resistance and industry certifications make it well-suited for demanding RV environments. However, it’s not designed for pressurization or hanging, and regular cleaning is necessary to maintain water quality. For RV owners needing a large, safe water storage solution with adaptable fittings, this tank strikes a good balance between capacity and durability.
Pros:- Made from BPA-Free, impact-resistant plastics
- Multiple fitting options for flexible installation
- Certified by QAI Laboratories and meets industry standards
Cons:- Does not include hardware or fittings
- Should not be pressurized or hung by straps
Best for: Full-time RV travelers or large families needing high-capacity, impact-resistant water storage.
Not ideal for: Those seeking a ready-to-install system with included hardware or who need pressurized or hung tanks, as hardware is not included.
- Capacity:57 gallons
- Dimensions:43″ x 25″ x 13″
- Material:BPA-Free plastics
- Fittings:Two 1.5″ threaded NPT, Two 0.5″ threaded NPT
- Made in:USA
- Standards:IAPMO, QAI Laboratories
Our verdict“A heavy-duty, high-capacity water tank perfect for large RV setups that value safety and durability.”
34 Gallon RV Concession Fresh and Gray Water Holding Tank for Sprinter Cargo Vans
This 34-gallon tank is ideal for small van conversions where space is limited, especially since it is designed to fit over the wheel wells of Sprinter and cargo vans. Made from NSF-approved, food-safe materials, it ensures safe water storage for both fresh and gray water, which is a step up from larger tanks like the 50-gallon option by Class A Customs T-5000, but its smaller capacity means less water storage overall. Its seamless construction enhances durability, yet it cannot be pressurized or sealed, making it less suitable for applications requiring pressurized water systems. Installation requires careful measurement and verification due to its specific fit, but once in place, it offers reliable storage for those prioritizing space efficiency.
Pros:- Made from NSF-approved, food-safe materials ensuring water safety
- Seamless construction for added durability and leak resistance
- Designed specifically to fit over wheel wells in Sprinter and cargo vans
- Suitable for both fresh and gray water storage in compact spaces
Cons:- Must be vented; cannot be sealed or pressurized, limiting some plumbing options
- Installation can be tricky, requiring precise fitment verification
- Limited capacity compared to larger tanks like the 50-gallon model
Best for: Small van owners needing a durable, space-fitting water tank that fits over wheel wells in Sprinter or cargo vans
Not ideal for: Vans or RVs needing larger capacity or pressurized water systems, due to its limited volume and venting requirements
- Capacity:34 gallons
- Material:Medium Density Polyethylene (MDPE)
- Color:Creamy White
- Longest Length:42 inches
- Height:21 inches
- Width:13 inches
- Fittings:One 1.5″ Female NPT, three 0.5″ Female NPT
- Made in:USA
- Manufactured by:Class A Customs
Our verdict“This tank suits owners of smaller vans or cargo vehicles seeking a durable, space-efficient water storage solution over the wheel well.”
Class A Customs T-5000 50 Gallon Fresh Water Holding Tank for RV and Concession
The Class A Customs T-5000 offers a significant 50-gallon capacity, making it a strong candidate for those needing extended water supply in RVs, campers, or concession trailers—outpacing the 34-gallon model in capacity. Its NSF-approved, food-safe materials provide peace of mind for drinking water, while its rotatable design allows flexible installation in tight or awkward spaces—an advantage over fixed-shape tanks like the 36 Gallon RV Fresh Water Tank. However, it requires careful handling and venting, as it cannot be pressurized or sealed, and slight variations in dimensions due to manufacturing tolerances can complicate exact fitment. Its larger size means it’s less suitable for small or space-constrained vans but ideal for those prioritizing capacity and versatility.
Pros:- Made from NSF-approved, food-safe materials suitable for drinking water
- Rotatable design allows versatile installation in various vehicle layouts
- Larger capacity for extended trips or high water demand
- Manufactured in the USA, ensuring quality standards
Cons:- Requires venting and careful handling to avoid damage, complicating installation
- Not compatible with pressurized plumbing systems, limiting certain setups
- Slightly larger dimensions may not fit all van models easily
Best for: Vans or RV owners needing maximum water storage with flexible installation options for larger or extended use scenarios
Not ideal for: Owners of small, tight-space vans or those who prefer a simple, fixed-shape tank without the need for rotation or extra capacity
- Capacity:50 gallons
- Material:NSF Approved
- Dimensions:38.25″ x 14.25″ x 22.25″
- Fittings:Two 1.5″ Female NPT, Two 0.5″ Female NPT
- Thickness:7/32″
- Made in:USA, Elkhart, Indiana
Our verdict“This tank makes the most sense for owners seeking high capacity and flexible installation in larger RVs or concession setups.”
How We Picked
These products were evaluated based on capacity, build quality, ease of installation, compatibility with different van models, and overall value. We prioritized tanks that offer durability, safety (such as BPA-free plastics), and versatility for various van layouts. Price was considered in relation to features and capacity, ensuring that both budget and premium options are represented. The ranking reflects a balance between size, usability, and quality, aiming to help different types of van builders—from weekend campers to full-time explorers—find the best fit.Factors to Consider When Choosing Water Tank For Van Builds
Choosing a water tank for van builds requires careful consideration of several factors to ensure it meets your needs without introducing unnecessary challenges. Beyond capacity, it’s important to evaluate material durability, installation options, and maintenance requirements. Understanding these factors can help avoid common pitfalls, such as overpaying for features you don’t need or selecting a tank that doesn’t fit your van’s space constraints.Capacity and Size
Deciding on capacity depends largely on your travel style and space availability. Larger tanks, typically over 50 gallons, are better for extended trips without access to refill points but can add significant weight and bulk. Smaller tanks are easier to install and manage but may require more frequent refills, which could be inconvenient on long trips. Consider your typical usage and storage space before choosing a size to avoid overloading your van or struggling with refilling logistics.
Material and Durability
Polyethylene is the most common material, valued for its durability and chemical resistance. BPA-free plastics are a safer choice, especially if you plan to store drinking water long-term. However, heavier tanks made from thicker plastics tend to last longer and resist cracking or damage, especially in rough conditions. Weigh the importance of longevity versus weight when selecting the material, especially if your van has weight limits or if you prioritize safety.
Shape and Installation Flexibility
The shape of the tank influences how easily it fits into your van’s available space. Cube-shaped tanks often maximize volume in compact areas, while slim or wheel-well tanks are designed to fit around existing structures. Proper installation also depends on access points and fittings—look for tanks with easy-to-connect fittings and consider how your plumbing setup will integrate. Avoid tanks that are difficult to mount or require extensive modifications, which can add to your build time and costs.
Price and Value
While it’s tempting to opt for the cheapest option, investing in a higher-quality tank can pay off through increased durability and fewer maintenance issues. Premium models with reinforced construction, integrated fittings, and BPA-free plastics often cost more initially but offer better longevity and safety. Conversely, budget tanks may work well for short-term or occasional use but may not withstand the rigors of frequent travel or harsh conditions. Balance your budget with your anticipated usage to choose a tank that offers true value.
Additional Features
Some tanks include features like built-in baffles to reduce movement during travel, drain valves for easier cleaning, or reinforced mounting points. Consider whether these features are essential for your setup or if they add unnecessary complexity or cost. For example, if you plan frequent maintenance, a tank with an accessible drain port can save time and hassle. Always evaluate how additional features align with your overall build and maintenance preferences.
Frequently Asked Questions
How do I choose the right capacity for my van?
Capacity should be based on how often you plan to refill and the number of people using the water system. If you’re living full-time or on long trips, a tank of 40 gallons or more can reduce refilling frequency. For weekend trips or short stays, smaller tanks may suffice, making installation and weight management easier. Carefully consider your travel plans, space constraints, and water usage to select a capacity that balances convenience with practicality.
Are BPA-free tanks safer for drinking water?
Yes, BPA-free tanks are generally safer for storing drinking water because they eliminate potential health risks associated with BPA leaching into water over time. This is especially important if you plan to store water for extended periods or use the tank for potable water. Choosing BPA-free plastics also aligns with broader health and safety standards, giving peace of mind during long-term use.
What installation considerations should I keep in mind?
Installation ease depends on tank shape, size, and fittings. Look for tanks with pre-drilled holes and compatible fittings that match your plumbing setup. Consider mounting options—whether you need a tank that can be secured with brackets, or one that fits into wheel wells or under benches. Also, check the weight of the tank when full to ensure your van’s suspension and frame can support it without issues. Proper planning at this stage can save headaches later.
Should I prioritize larger capacity over weight?
It depends on your vehicle’s weight limits and your travel style. Larger tanks mean more water and fewer refills, but they also add significant weight, which can impact fuel efficiency and handling. If your van has a high payload capacity, a bigger tank might be worthwhile. Conversely, for smaller vans or those with weight restrictions, a smaller, lighter tank could be more practical, even if it means refilling more often.
How often should I clean or replace my water tank?
Regular cleaning—at least once every few months—is recommended to prevent algae, bacteria, and mineral buildup. Use a mild cleaning solution and rinse thoroughly to maintain water quality. If you notice cracks, leaks, or persistent odors, it’s time to replace the tank. Proper maintenance prolongs the life of your water system and keeps your water safe for consumption, especially for long-term van dwellers.
Conclusion
For full-time van dwellers or those planning extended trips, the Class A Customs T-3687 36-Gallon Tank strikes a good balance of size and durability, making it the best overall choice. Budget-conscious builders will appreciate the 20-Gallon Water Storage Tank for its affordability and simplicity, while high-capacity needs are best met by the RomoTech 50-Gallon Tank. Beginners should look for tanks with straightforward installation features, like the ICON 20-Gallon Tank. For those prioritizing safety and durability, premium options like the 57-Gallon BPA-Free Tank are worth considering. Your choice ultimately depends on your travel style, van size, and water needs.
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