Finding the best portable grey water tank for your RV involves balancing capacity, ease of transport, durability, and price. The Camco Rhino 36-Gallon Tote Tank stands out for its large capacity and built-in gate valve, making it ideal for extended trips. For everyday use, the Camco Rhino 21-Gallon Portable Waste Tank offers a good mix of size and mobility, while the SereneLife 10 Gallon Tank provides a compact option for smaller setups. Each option involves tradeoffs: larger tanks mean more capacity but less portability, while smaller tanks excel in ease of handling but require more frequent emptying. Continue reading for a detailed comparison to help you find the best fit for your RV needs.
Key Takeaways
- Larger capacity tanks like the Camco Rhino 36-Gallon are suited for extended trips but are less portable.
- The Camco Rhino 21-Gallon offers a balanced approach for most RVers, combining capacity with manageable size.
- Compact tanks such as the SereneLife 10-Gallon excel for quick, short trips or limited space but require frequent emptying.
- Features like built-in gate valves and heavy-duty wheels significantly influence ease of use and transport.
- Price varies widely; investing in a durable tank with quality wheels can save money over time through reduced maintenance.
More Details on Our Top Picks
RecPro RV Fresh Water Tank 21 Gallon for Drinking and Potable Water | 39.25″ x 8″ x 16″ | Fresh or Gray Water Plastic Storage | Made in America
This RecPro 21-gallon tank stands out for its durable polyethylene construction and straightforward design, making it a reliable choice for RV owners who prioritize long-term performance. Compared to the SereneLife 20 Gallon tank, this model offers a slightly larger capacity and a sturdier build, though it involves a heavier weight that could complicate handling. Its leak-proof design and American-made quality provide peace of mind, but the size may be too bulky for smaller RVs or tight spaces. The tank’s dimensions fit well in standard RV compartments, and the sturdy connections prevent leaks during travel, making it ideal for those seeking durability and reliability.
Pros:- Sturdy polyethylene construction resists rust and corrosion
- Leak-proof design enhances hygiene and safety
- Made in the USA ensures high quality
Cons:- Heavier and bulkier than smaller tanks, making handling more difficult
- Higher price point compared to less durable options
Best for: Full-time RVers or long-term travelers needing a tough, dependable water storage solution.
Not ideal for: Those with limited space or who require a lightweight, easily portable tank for short trips.
- Capacity:21 Gallons
- Dimensions:39.25″ x 8″ x 16″
- Material:Polyethylene (PE)
- Weight:Heavy
- Made in:USA
- Leak-proof:Yes
Bottom line: This tank is perfect for RV owners who need a durable, large-capacity water storage solution that lasts for years.
SereneLife 20 Gallon / 75L RV Water Tank – Camper Accessories Portable Container with Level Indicator, Rotating Spout, Metal Handle & Heavy-Duty Wheels, Suitable for Freshwater or Sewage Storage
This SereneLife 20-gallon tank offers a compelling balance of capacity and portability, making it an excellent choice for budget-conscious RV owners. Its heavy-duty wheels and rotating spout make it easier to move and empty, especially compared to the RecPro tank, which is bulkier and heavier. Its HDPE construction resists outdoor wear and leaks, but the slightly smaller capacity may require more frequent refills for longer trips. The built-in level indicator helps monitor capacity, though some users find the weight still challenging to handle manually. Overall, this pick makes the most sense for those looking for a reliable, affordable portable grey water tank with user-friendly features.
Pros:- Heavy-duty wheels and swivel for easy movement
- Built-in level indicator for capacity monitoring
- Resistant to outdoor wear, durable HDPE material
Cons:- Limited capacity compared to larger tanks like the Camco Rhino 21-Gallon
- Heavier to move when full, despite wheels
Best for: Casual RV travelers or weekend campers who value portability and cost-effectiveness.
Not ideal for: Full-timers or those with large water demands, who might find the capacity insufficient.
- Capacity:20 Gallons / 75L
- Dimensions:12.6″ x 9.8″ x 19.4″
- Material:High Density Polyethylene (HDPE)
- Weight:17.38 Pounds
- Wheels:Heavy-duty, no-flat
- Includes:Level indicator, rotating spout
Bottom line: This tank is ideal for those who need a portable, durable grey water solution without the bulk of larger tanks.
Camco TST Camper/RV Grey Water Odor Control – Removes Grease Buildup in Gray Water Tank, Sink & Shower Drains – 4oz Treats 40-Gal Holding Tank – Safe Septic Tank Treatment – Lemon, 64 oz (40256)
This Camco odor control treatment excels at neutralizing unpleasant smells and preventing grease buildup, making it a key accessory for maintaining a fresh and efficient grey water system. Its powerful lemon scent leaves the RV smelling clean, and the 64 oz bottle treats up to 40 gallons, surpassing the capacity of many portable tanks. However, it’s not a tank itself but a treatment product, so it’s best paired with a quality tank like RecPro or SereneLife. Compared to other tank accessories, this offers a proactive approach to odor management, though it requires regular application and proper dosing to be effective. It’s a smart choice for RV owners who prioritize hygiene and odor control in their grey water systems.
Pros:- Effective odor neutralization with a fresh lemon scent
- Prevents grease buildup, reducing clogs
- Safe for septic systems and environmentally friendly
Cons:- Requires regular application, not a standalone tank
- Does not provide water storage capacity
Best for: RV owners who want to prevent odors and grease buildup in their grey water tanks proactively.
Not ideal for: Those seeking a portable tank solution, as this is a treatment, not a tank itself.
- Size:64 oz
- Treats:40 Gallons
- Type:Odor control and grease remover
- Scent:Lemon
- Safety:Septic safe
Bottom line: This product is best for RV owners looking to keep their grey water tanks odor-free and well-maintained.
RecPro Fresh and Gray Water Holding Tank | Combo Pack | RV Water Holding Tank | Camper Water Holding Tank (16 Gallon & 21 Gallon)
This RecPro combo pack offers two tanks—16 and 21 gallons—providing flexible capacity options for RV owners with tight or varied spaces. The high-grade polyethylene construction ensures durability and resistance to outdoor conditions, similar to the single 21-gallon tank, but with added versatility. Its reinforced walls and American manufacturing quality make it reliable for long-term use, though handling two tanks can be cumbersome for smaller or less experienced users. The compact dimensions of both tanks allow installation in tight spaces, making this a smart choice for RV owners who want adaptable water storage without sacrificing durability. However, managing two tanks may require more maintenance and space planning.
Pros:- Includes two tanks with varying capacities for flexibility
- Heavy-duty polyethylene resists rust and corrosion
- Made in the USA with reinforced walls
Cons:- Managing two tanks can be more complex than a single unit
- Requires more space for installation
Best for: RV owners who need adaptable water storage options for different situations or limited space.
Not ideal for: Travelers preferring a single, lightweight tank for simplicity or minimal handling.
- Capacities:16 Gallon & 21 Gallon
- Material:Polyethylene (HDPE)
- Dimensions (16 Gal):24″ x 10″ x 15.5″
- Dimensions (21 Gal):39″ x 8″ x 16″
- Made in:USA
- Reinforced walls:Yes
Bottom line: This combo pack is ideal for RV owners who want versatile water storage options with durable construction.
Camco Rhino 21-Gallon RV Portable Waste Tank – Features Large Heavy-Duty No-Flat Wheels & Low Drain Hole – Includes Removable Steel Tow Adapter, 3’ Sewer Hose & More RV Accessories (39002)
The Camco Rhino 21-Gallon waste tank is engineered for easy waste disposal, with large no-flat wheels and a low drain hole that make emptying hassle-free. Its durable HDPE construction withstands outdoor conditions, and the included steel tow adapter simplifies transport behind a truck or golf cart. Compared with smaller tanks like the Rhino 15-Gallon, this model offers more capacity for extended trips and heavy-duty use, though it’s slightly heavier and bulkier to handle manually. Its smooth interior and tank rinser facilitate cleaning, making it a top choice for RV owners who prioritize efficient waste management and ease of transportation.
Pros:- Large 21-gallon capacity for extended trips
- Heavy-duty no-flat wheels for all-terrain mobility
- Includes a steel tow adapter for easy hauling
Cons:- Heavier and bulkier than smaller models, more challenging to carry
- Price is higher than smaller waste tanks
Best for: RV owners needing a robust, portable waste tank for extended use or off-site dump stations.
Not ideal for: Travelers with limited storage space or who only need occasional waste disposal solutions.
- Capacity:21 Gallons
- Material:HDPE
- Wheels:Heavy-duty, no-flat
- Dimensions:20 1/8″ x 12 1/2″ x 40″
- Includes:Steel tow adapter, sewer hose
- Made in:USA
Bottom line: This waste tank is perfect for RVers who require a durable, high-capacity portable waste solution with easy towing capabilities.
Camco Rhino 15-Gallon Portable RV Tote Tank – Features Large Heavy-Duty No-Flat Wheels & Low Drain Hole – Includes Removable Steel Tow Adapter, 3’ Sewer Hose & More RV Accessories (39000)
This Camco Rhino 15-Gallon Tote Tank stands out for its robust construction, large no-flat wheels, and user-friendly design, making it ideal for frequent RVers who need reliable waste disposal. Compared with the smaller SereneLife 10-Gallon model, this tank offers more capacity, reducing the need for frequent emptying. Its sturdy UV-stabilized HDPE material resists sun damage and leaks, while the large handle and steel tow adapter simplify transport, even over rugged terrain. The smooth interior and tank rinser make cleaning straightforward, though its size can make it heavy when fully loaded, which might challenge those with limited strength. The included accessories—sewer hose, caps, and ladder hook—add convenience but also mean a higher price point. For those seeking a durable, high-capacity option that balances portability with toughness, this tank is an excellent choice.
Pros:- Heavy-duty UV-stabilized HDPE construction resists sun and leaks
- Large no-flat wheels and oversized handle for effortless transport
- Includes comprehensive accessories for quick setup and cleaning
Cons:- Heavier when filled, making it harder to move for some users
- Size may be cumbersome for small RV storage compartments
Best for: RV owners who prioritize durability, high capacity, and easy cleanup for frequent travel.
Not ideal for: Campers with limited strength or space who need a lightweight, compact solution.
- Capacity:15 gallons
- Material Type:UV-stabilized HDPE
- Dimensions:20 1/8″ x 12 1/2″ x 32 1/8″
- Item Weight:31.5 lb
- Wheels:Large no-flat
- Additional Features:Tank rinser, ladder hook, steel tow adapter
Bottom line: This pick suits RV owners needing a rugged, high-capacity tote that balances durability and ease of transport despite its weight.
Barker 10893 Tote Tank – 10 Gallon Capacity , Blue
The Barker 10893 Tote Tank offers a straightforward, compact solution for RVers who need a lightweight, simple waste tank. Its 10-gallon capacity is perfect for occasional use or smaller RVs, making it easier to handle than bulkier models like the Camco Rhino 36-Gallon. Constructed from durable polyethylene, it features large wheels and a vented cap for quick, mess-free emptying. However, compared to larger tanks, it requires more frequent emptying, which might be inconvenient for longer trips. Its simple design makes it ideal for beginners or those with limited storage space, but it lacks advanced features like a built-in rinser or multiple connection points found on premium models. If portability and ease of handling are your top priorities, this tank fits well within your needs.
Pros:- Lightweight and easy to maneuver
- Large vented cap for quick emptying
- Sturdy polyethylene construction
Cons:- Limited capacity, needs frequent emptying
- Basic features without integrated rinser or multiple connection options
Best for: RV owners who need a lightweight, easy-to-handle waste tank for short trips or small rigs.
Not ideal for: Long-term travelers or large families who require higher capacity and more features.
- Capacity:10 gallons
- Material Type:Polyethylene
- Dimensions:39.25″ x 8″ x 16″
- Item Weight:Approximately 11.98 lb
- Wheels:Large, durable
- Additional Features:Vented cap for easy emptying
Bottom line: This tank is best suited for occasional use or small RVs where ease of handling outweighs capacity needs.
Camco Rhino 36-Gallon RV Tote Tank – Features Large Heavy-Duty No-Flat Wheels & Built-in Gate Valve – Removable Steel Tow Adapter, 3’ Sewer Hose & More RV Accessories (39006)
The Camco Rhino 36-Gallon Tote Tank excels for RV owners who need a large capacity and integrated features for efficient waste management. Its 24 1/8” x 14 3/4” x 44 7/8” dimensions and 45 lb weight when empty make it suitable for those with enough storage space and strength to handle heavier loads. Unlike the smaller Rhino 15-Gallon model, this version offers significantly increased capacity for extended trips without frequent dumping. It features a built-in gate valve for quick emptying, plus a heavy-duty no-flat wheel design and a comprehensive accessory kit, including sewer hoses and caps. The tradeoff is its larger size, which may be cumbersome for small or less accessible storage compartments. This model is ideal for those prioritizing capacity and built-in convenience features for hassle-free waste disposal over portability.
Pros:- Large 36-gallon capacity reduces frequency of emptying
- Built-in gate valve for quick, mess-free emptying
- Heavy-duty no-flat wheels and accessory kit included
Cons:- Size and weight can be difficult for small RVs or weaker users
- Bulkier dimensions may limit storage options
Best for: Large RVs and travelers who need a high-capacity, all-in-one waste management solution.
Not ideal for: Campers with limited storage or those seeking ultra-lightweight options.
- Capacity:36 gallons
- Material Type:UV-stabilized HDPE
- Dimensions:43.38″L x 43.38″W x 25.3″H
- Item Weight:20.41 kg
- Wheels:Large heavy-duty no-flat
- Additional Features:Built-in gate valve, sewer hose, steel tow adapter
Bottom line: This tank is perfect for large RV setups where capacity and convenience trump size and weight considerations.
SereneLife 10 Gallon / 40L RV Water Tank – Camper Accessories Portable Container with Level Indicator, Rotating Spout, Metal Handle & Heavy-Duty Wheels, Suitable for Freshwater or Sewage Storage
The SereneLife 10-Gallon Water Tank combines portability with utility, featuring a level indicator, rotating spout, and heavy-duty wheels, making it suitable for both freshwater and waste storage. Its 10.5-gallon capacity is similar to the Barker model but with added features like a clear level indicator that helps monitor contents easily. The tough PE plastic and metal handle ensure durability, while the large wheels facilitate rolling even when full, reducing strain. Its wide openings allow for quick filling and cleaning, but the size limits its use to smaller quantities, requiring frequent emptying on longer trips. Compared to the larger Camco Rhino tanks, this one is lighter and easier to handle but less suited for high-capacity needs. Perfect for users seeking flexibility and ease of use in a compact form.
Pros:- Versatile use for freshwater or sewage storage
- Includes level indicator for easy content monitoring
- Heavy-duty wheels and metal handle for mobility
Cons:- Limited 10-gallon capacity, more frequent emptying needed
- Not designed for high-volume waste or long-term use
Best for: RV owners who need a portable, multi-purpose tank for both freshwater and waste with easy monitoring.
Not ideal for: Those requiring large capacity or long-term storage without frequent emptying.
- Capacity:10 gallons / 40L
- Material Type:Heavy-duty PE plastic
- Dimensions:31.5″L x 14.6″W x 9.1″H
- Item Weight:Approx. 11.98 lb
- Features:Level indicator, rotating spout, heavy-duty wheels
- Additional Features:Suitable for freshwater or sewage storage
Bottom line: This tank suits RVers who want a flexible, easy-to-move solution for small quantities of water or waste, with straightforward monitoring and handling.
How We Picked
Products were evaluated based on capacity, portability, build quality, ease of use, and included accessories. Priority was given to tanks that balance size with mobility, ensuring they are practical for a range of RV setups. We also considered user-friendly features like wheels, drain valves, and compatibility with common sewer fittings. Our ranking favors tanks that provide a clear tradeoff between capacity and transportability, helping different types of RVers find suitable options. The goal was to identify tanks that deliver reliable performance without unnecessary complexity or cost.Factors to Consider When Choosing Best Portable Grey Water Tank For RV
Choosing the best portable grey water tank for your RV involves understanding key factors that influence performance and convenience. While size is important, other aspects such as mobility, durability, and ease of emptying can significantly impact your experience. Considering these broader factors helps avoid common pitfalls like buying a tank that’s too large to handle or too small for your needs. The right balance ensures your grey water management is smooth and hassle-free during your travels.Capacity and Usage Frequency
Assess how often you’ll need to empty your grey water tank. Larger tanks, like the Camco Rhino 36-Gallon, are better suited for long trips where frequent dumping isn’t feasible. Smaller tanks are easier to handle but require more trips to dump stations, which may disrupt travel plans. Think about your typical usage and storage space available in your RV to find a size that balances capacity with portability.
Portability and Handling
Look for tanks equipped with features like heavy-duty wheels, handles, and low-profile designs. Tanks like the Camco Rhino series excel here, making transportation easier even when full. Avoid tanks that are overly bulky or lack sturdy wheels, as they can become a strain to move, especially when filled. If you frequently need to empty your grey water, prioritizing mobility features is wise.
Build Quality and Material
Durability matters when handling waste tanks that will face frequent use and outdoor conditions. High-quality plastics, reinforced seams, and corrosion-resistant fittings prolong the lifespan of your tank. Cheaper models may crack or degrade faster, leading to leaks or spills. Investing in a well-made tank can reduce replacement costs and ensure safety during handling.
Ease of Emptying and Maintenance
Features like built-in gate valves and accessible drain holes simplify the process of dumping grey water. Some tanks include additional accessories like sewer hoses and adapters, which streamline connection to dump stations. Avoid tanks with complicated or inaccessible drainage systems, as they can make regular maintenance a chore and risk spills.
Price and Value
While budget tanks might seem attractive, they often compromise on durability or features. Consider the long-term value of investing in a sturdy, feature-rich tank that will last through many trips. Mid-range options like the Camco Rhino series often strike the best balance, offering quality without excessive cost. Remember, a slightly higher upfront investment can pay off through better performance and fewer replacements.
Frequently Asked Questions
How often should I empty my grey water tank during a trip?
The frequency depends on your tank’s capacity and water usage, but generally, it’s best to empty it when it’s about two-thirds full. Monitoring your water levels with built-in indicators or visual checks helps prevent overflows or unpleasant odors. Regular emptying also reduces strain on your tank and plumbing, ensuring smoother trips.
Can I use my grey water tank for both gray and black water?
Usually, grey water tanks are designed specifically for wastewater from sinks and showers. Black water tanks, which hold sewage, require separate, dedicated tanks due to stricter disposal regulations and material requirements. Using a grey water tank for black water is strongly discouraged because it can lead to contamination and sanitation issues.
What features should I look for to make emptying easier?
Features like built-in gate valves, low drain holes, and included sewer hoses significantly simplify the emptying process. Tanks with large, accessible drain openings reduce spills and make cleaning easier. Additionally, tanks with durable wheels and handles help transport the full tank to dump stations with less effort.
Are larger tanks worth the extra weight and size?
Larger tanks reduce the frequency of emptying, which is convenient for extended trips or remote locations. However, they are heavier and less portable, making handling more challenging. If your RV setup can accommodate the size and weight, a larger tank can be a good investment. Otherwise, a smaller, lighter model might provide more practical benefits.
How should I maintain my portable grey water tank?
Regular cleaning with water and mild disinfectants prevents odors and buildup. Always rinse the tank thoroughly after emptying, especially if you notice any residue. Check fittings and wheels periodically for damage, and store the tank in a dry place when not in use. Proper maintenance extends the lifespan and keeps the tank functioning safely.
Conclusion
The best overall choice for most RVers is the Camco Rhino 21-Gallon Portable Waste Tank, offering a strong balance of capacity and portability. For those prioritizing maximum capacity for long trips, the Camco Rhino 36-Gallon Tote Tank is ideal, despite its bulk. Beginners or casual travelers might prefer the compact SereneLife 10 Gallon Tank, which is easier to handle and store. For users seeking premium features and durability, investing in high-quality tanks with built-in valves and rugged wheels makes sense. Ultimately, your choice should align with your trip length, storage space, and handling comfort.
