Finding the right RV water storage tank depends on your travel style and water needs. This guide highlights five reliable options that cover small to large capacity, portable to in-built, and potable water use. Best for frequent campers, full-timers with larger rigs, and minimalist setups seeking compact tanks.
| Product | Capacity | Type | Best For |
|---|---|---|---|
| Ameri-Kart 36 Gallon WT-5549 | 36 Galls | Rigid Cube | Mid-size RVs, long trips, full-service water supply |
| Ameri-Kart 19 Gallon WT-5450 | 19 Galls | Rigid Cube | Smaller RVs, weekend trips, limited space |
| Rodelna Water Storage Bladder | 65 Gallon | Foldable Bladder | Emergency storage, flexible setup |
| 30 Gallon RV Fresh/Gray Tank | 30 Galls | Rigid Tank | Integrated water and gray water handling |
| Camco Rhino 15-Gallon Tote Tank | 15 Galls | Portable Tote | Waste disposal and portable water transport |
Ameri-Kart 36 Gallon RV Fresh Water Tank
Capacity and durability guide this tank toward mid-to-large RVs or campers with steady water needs. Made in the USA from BPA-free materials, it supports drinking, cooking, cleaning, and showering. Built-in fittings include two 1.5″ balloon-style NPT connections and two 0.5″ NPT connections. It is designed to be sanitary and leak-proof, meeting IAPMO standards. Best for: full-time or extended trips where a stable, large-capacity potable water supply is essential. Caution: heavier and bulkier than smaller tanks, requiring adequate mounting space and sturdy installation support.
Ameri-Kart 19 Gallon RV Fresh Water Tank
Designed for smaller rigs or limited spaces, this 19-gallon tank provides essential potable water storage with easy installation. It features two 1.5″ balloon-style NPT fittings plus two 0.5″ fittings and is built from weather-resistant, BPA-free plastics. It’s ideal for weekenders or compact motorhomes that still require reliable drinking water storage. Choose this if you want a balance between capacity and install versatility. Caution: 19 gallons may require more frequent refills on longer trips.
Rodelna 65 Gallon Foldable Water Bladder
This foldable bladder offers a flexible solution for emergency or temporary water storage. It folds flat when empty and expands to about 65 gallons when filled, featuring a 3/4″ spout and a 1.5″ inlet for quick filling. Best for campers who want lightweight, compact storage that can be stowed away when not in use. Limitation: foldables may require careful monitoring to avoid puncture and require a sturdy carrier when in use.
30 Gallon RV Fresh/Gray Water Tank
With a one-piece seamless construction and 34″ x 18″ x 12″ dimensions, this tank keeps clean water separate from gray water needs. It includes a 1.25″ water fill inlet and three 3/8″ NPT connections. Best for RVs needing a balance of capacity and durable, leak-free design without complex seam risks. Choose this if you want a straightforward, rugged option for mid-sized RVs. Caution: non-pressurized tank requires proper venting for safe use.
Camco Rhino 15-Gallon Portable Tote Tank
This portable tote tank specializes in waste disposal and water transport. Its large wheels, heavy-duty construction, and removable tow adapter enable easy transport and maneuverability when distance to a dump station is a concern. Best for RVers who need a reliable way to move waste or water where fixed tanks aren’t feasible. Limitation: not a potable water tank; intended for waste or non-potable transport, so use separately for water storage.
Buying Guide
What capacity fits your travel style?
Lower-capacity tanks (5–20 gallons) suit compact trailers and weekend trips with space constraints. Medium tanks (20–40 gallons) fit most mid-size RVs. Large tanks (40+ gallons) are ideal for full-time RV living or extended trips with limited fill points.
Rigid tanks vs. collapsible bladders
Rigid tanks provide rigid mounting and leak resistance but require solid installation space. Collapsible bladders offer flexible storage and can travel light, but they may need careful handling to avoid punctures and to ensure complete drainage.
Installation and fittings
Check built-in fittings, including NPT size options and mounting points. Tanks with multiple fitting options offer installation freedom in tight spaces. Ensure the mounting surface supports the tank’s weight when full.
Potable water safety and standards
Look for BPA-free materials and third-party certifications or standards like IAPMO. Sanitary construction, leak-proof design, and safe storage of drinking water are critical for health and compliance.
Portability and access
Portable options are convenient for temporary setups or remote camping. For frequent relocation, wheels and handles improve mobility. Consider how you will drain and refill the tank on-site.
Maintenance considerations
Regular cleaning, sanitizing, and proper venting help maintain water quality. Some designs include built-in fittings that simplify cleaning or draining all water from the tank to prevent stagnation.
FAQ
- How do I know which tank size to choose? Consider your RV size, fresh water needs, and how often you can refill at campsites or dump stations.
- Are these tanks BPA-free? Most Ameri-Kart tanks are BPA-free, designed to store potable water safely. Verify the material on the product page when selecting.
- Can a bladder tank be used for drinking water? Bladder tanks are typically used for flexible storage and may not meet the same potable-water standards as rigid tanks. Use according to manufacturer guidance.
- What maintenance is required? Regular cleaning, sanitizing, and proper venting are recommended to prevent bacterial growth and odors. Inspect fittings for leaks periodically.
- Is a portable tote tank suitable for water or waste? Tote tanks are best for waste disposal or transporting non-potable water. Use a dedicated potable water tank for drinking water storage.
- Do these tanks meet RV industry standards? Several models mention IAPMO standards and weather-resistant construction, which helps ensure compatibility with RV systems.