When it comes to sustainable water management, greywater holding tanks are essential for RV owners and tiny home dwellers. In 2025, you’ll find a range of options that offer efficiency and durability, catering to various storage needs. From the robust Class A Customs tanks to the portable Camco Rhino series, each choice has unique features worth exploring. Curious about which tank suits your lifestyle best? Let’s take a closer look at your top options.
classAcustoms WT-3232 1.5″ Grey Water RV Waste Holding Tank (32 Gallon)
If you’re an RV owner looking for an efficient solution to manage your greywater, the Class A Customs WT-3232 1.5″ Grey Water RV Waste Holding Tank is an excellent choice. With a generous 32-gallon capacity, this durable tank is made from medium density polyethylene resin, ensuring long-lasting performance. It’s specifically designed for waste and greywater only, so you won’t confuse it with fresh water systems. Installation involves determining inlet and vent placements, which allows for tailored setup. Just remember, keep fittings secure but avoid over-tightening to prevent damage. This tank is a reliable option for sustainable water management on your travels.
Best For: RV owners seeking a reliable and efficient solution for managing greywater waste during their travels.
Pros:
- Durable Material: Made from medium density polyethylene resin for long-lasting performance.
- Generous Capacity: 32-gallon capacity is ideal for extended trips without frequent dumping.
- Customizable Installation: Allows for tailored setup with user-determined inlet and vent placements.
Cons:
- No Fresh Water Use: Designed exclusively for waste/greywater, cannot be used for fresh or drinking water.
- Additional Hardware Required: Installation requires extra fittings, piping, and mounting hardware that are not included.
- Ventilation Necessary: Must be vented properly during use to prevent pressure build-up and potential damage.
classAcustoms WT-3418 34 Gallon Grey Water RV Waste Holding Tank
The Class A Customs WT-3418 34 Gallon Grey Water RV Waste Holding Tank is a superb choice for RV enthusiasts and tiny house dwellers looking for efficient waste management solutions. Constructed from durable Medium Density Polyethylene, it’s designed specifically for gray water use. With a capacity of 34 gallons, you’ll have ample space for waste. Installation requires a 1.5” ABS female pipe outlet and proper venting to function correctly. Make certain to use PVC or ABS piping for your dump valve setup, as these aren’t included. Regularly check your fittings to prevent leaks and guarantee peak performance.
Best For: RV enthusiasts and tiny house dwellers seeking an efficient solution for gray water waste management.
Pros:
- Made from durable Medium Density Polyethylene (MDPE) for long-lasting use.
- Ample 34-gallon capacity to accommodate waste for extended trips.
- Designed specifically for gray water, ensuring safe waste disposal.
Cons:
- Requires additional PVC or ABS piping for complete installation, not included in the purchase.
- Must be properly vented; failure to do so can result in malfunctions.
- Installation may be complex for those unfamiliar with plumbing systems.
Camco Rhino 36-Gallon RV Tote Tank
For RV enthusiasts seeking a reliable solution for waste disposal, the Camco Rhino 36-Gallon RV Tote Tank stands out with its impressive capacity and robust design. Constructed from durable, UV-stabilized HDPE, it’s built to last and resists leaks and sun damage. With heavy-duty no-flat wheels and an oversized handle, you can easily transport it over various terrains. The included accessories, like the 3′ sewer hose and tow adapter, enhance convenience. Plus, the built-in gate valve and integrated tank rinser make emptying and cleaning a breeze. You’ll appreciate its efficient storage options and ease of use during your adventures.
Best For: RV enthusiasts looking for a reliable and efficient waste disposal solution during their travels.
Pros:
- Durable construction from UV-stabilized HDPE ensures long-lasting use without leaks or sun damage.
- Equipped with heavy-duty no-flat wheels and an oversized handle for easy transport across various terrains.
- Includes a comprehensive set of accessories for convenient use and storage, including a sewer hose and tow adapter.
Cons:
- Weighing 45 lbs, it may be cumbersome for some users to lift and maneuver.
- Limited capacity of 36 gallons may not be sufficient for larger RVs or extended trips without disposal.
- The size may require additional storage space in some RVs or campers.
Camco Rhino 28-Gallon RV Tote Tank
Perfect for RV enthusiasts who often find themselves parked far from dump stations, the Camco Rhino 28-Gallon RV Tote Tank makes waste disposal a breeze. Weighing only 43 lbs and measuring 24 1/8″ x 14″ x 43 3/4″, it’s designed for durability with UV-stabilized HDPE, preventing leaks and sun damage. Large no-flat wheels and an oversized handle guarantee easy maneuverability across all terrains. The built-in gate valve allows quick emptying, while the included accessories, like a 3’ sewer hose and steel tow adapter, enhance convenience. Plus, it’s easy to store with its ladder hook and tie-down strap grooves.
Best For: RV enthusiasts who need an efficient solution for transporting waste from their RV to distant dump stations.
Pros:
- Durable construction with UV-stabilized HDPE protects against leaks and sun damage.
- Easy maneuverability provided by large no-flat wheels and an oversized handle.
- Comes with essential accessories, including a 3’ sewer hose and steel tow adapter for added convenience.
Cons:
- At 43 lbs, it may be heavy for some users to lift or carry.
- The size may take up significant space when stored, despite the storage solutions.
- Requires regular cleaning to maintain hygiene and performance.
RecPro RV Tank Heater Pad (12″ x 18″)
If you’re looking to maintain your RV’s water systems during winter camping or in cold climates, the RecPro RV Tank Heater Pad (12″ x 18″) is an excellent choice. This pad fits fresh water, grey water, and holding tanks, accommodating up to 50 gallons. It activates automatically when water temperatures drop below 45°F, heating water up to a comfortable 68°F. With a peel-and-stick adhesive back, installation is a breeze. Designed by Genesis Lighting, this heater pad effectively prevents freezing issues, ensuring your water system flows smoothly even in the harshest conditions. Don’t let the cold hinder your adventures!
Best For: Outdoor enthusiasts and RV owners who frequently camp in winter or cold climates and need to prevent water system freezing.
Pros:
- Easy Installation: The peel-and-stick adhesive back allows for quick and simple application to most tanks.
- Automatic Activation: The pad activates automatically when temperatures drop below 45°F, ensuring consistent water flow.
- Effective Heating: Heats water up to a maximum of 68°F, providing comfortable water temperatures even in cold weather.
Cons:
- Limited Coverage: Each pad is only 12″ x 18″, which may require multiple units for larger tanks.
- Voltage Requirement: Requires a specific voltage of 13.5V, which may limit compatibility with some RV electrical systems.
- Temperature Limitation: Can only heat water up to 68°F, which may not be sufficient for extreme cold conditions.
Camco TST Grey Water Odor Control for RVs (64 oz)
Camco TST Grey Water Odor Control is an essential solution for RV owners looking to maintain a clean and fresh environment while on the road. This 64 oz bottle treats up to 40 gallons of holding tank, effectively cleaning your grey water system. It removes grease buildup from tanks, sinks, and shower drains, preventing clogs and ensuring smooth water flow. Plus, it neutralizes unpleasant odors, infusing a revitalizing lemon scent. Safe for septic tanks and formaldehyde-free, this environmentally friendly formula simplifies RV maintenance, helping you enjoy your adventures without the hassle of unwanted odors. Keep your RV inviting with Camco TST!
Best For: RV owners seeking an effective way to control odors and maintain a clean grey water system.
Pros:
- Cleans and maintains the grey water system, preventing clogs and ensuring smooth water flow.
- Neutralizes unpleasant odors while infusing a refreshing lemon scent, keeping the RV inviting.
- Environmentally friendly formula that is safe for septic tanks and free of formaldehyde.
Cons:
- Requires regular use to maintain effectiveness, which may be seen as an added maintenance task.
- The concentrated formula may need careful measuring to avoid overuse.
- Some users may prefer a different scent than lemon, which could affect overall satisfaction.
YITAHOME 19.8 Gallon Portable Water Holding Tank
The YITAHOME 19.8 Gallon Portable Water Holding Tank is an excellent choice for campers and RV enthusiasts seeking a reliable solution for transporting water. With a generous capacity of 19.8 gallons, it features multiple water injection and drainage outlets for quick filling and emptying. The integrated design makes installation hassle-free, while the rotating spout guarantees splash-free emptying. Mobility is a breeze thanks to universal wheels at the top and large wheels at the bottom, making it easy for anyone to maneuver. Plus, the liquid level display helps you avoid overflow, saving you time and effort during your trips.
Best For: Campers and RV enthusiasts looking for a portable and efficient water transportation solution.
Pros:
- Multiple water injection and drainage outlets for quick filling and emptying.
- Integrated design eliminates installation hassle and features a splash-free rotating spout.
- Equipped with universal wheels and large wheels for easy mobility, even when full.
Cons:
- Limited capacity of 19.8 gallons may not suffice for larger groups or extended trips.
- May require periodic maintenance to ensure all outlets remain functional.
- Weight can be cumbersome when fully loaded, depending on user strength and mobility.
classAcustoms | T-2500 | One (1) RV Fresh Water 25 Gallon Tank, Grey Water
For those seeking a reliable solution for managing greywater in RVs and smaller mobile units, the Class A Customs is an excellent choice. This 25-gallon tank, manufactured in Elkhart, Indiana, meets NSF standards, making it safe for fresh and drinking water. Its versatile dimensions (33 1/2″ x 10″ x 17″) allow for various orientations. Built-in fittings guarantee watertight connections, but remember to avoid over-tightening. Use gravity fill methods for easy operation, and always vent the tank to prevent pressure build-up. With proper maintenance and care, the makes greywater management hassle-free and efficient for your travels.
Best For: Those looking for a reliable and safe solution for managing greywater in RVs, pop-up campers, and smaller mobile units.
Pros:
- NSF approved materials ensure safety for both fresh and drinking water.
- Versatile dimensions allow for multiple orientation options during installation.
- Built-in fittings provide watertight connections for efficient usage.
Cons:
- Requires venting to prevent pressure build-up, which may complicate installation.
- Over-tightening fittings can lead to potential damage, necessitating careful handling.
- Limited capacity of 25 gallons may not be sufficient for larger RVs or extended trips.
classAcustoms WT-3161 3″ Hub Black Water RV Waste Holding Tank (31 Gallon)
If you’re seeking a reliable waste management solution for your RV or tiny house, the Class A Customs WT-3161 Black Water Holding Tank is an excellent choice. With a 31-gallon capacity, it’s crafted from durable medium-density polyethylene, ensuring longevity. This cylindrical tank is designed specifically for black water or grey water, keeping your living space sanitary. It features a 3-inch ABS female pipe outlet, but you’ll need to source PVC or ABS piping for installation. Remember to vent the tank properly for air circulation, and secure it to handle the weight when full. Enjoy peace of mind on your travels!
Best For: RV owners, campers, and tiny house dwellers looking for a reliable waste holding solution.
Pros:
- Durable construction from medium-density polyethylene ensures long-lasting use.
- 31-gallon capacity is suitable for extended trips without frequent dumping.
- Designed specifically for black and gray water, maintaining sanitation in living spaces.
Cons:
- Requires additional PVC or ABS piping for installation, which is not included.
- Inlet and vent installation is user-determined, potentially complicating setup.
- Must be properly vented and secured, requiring careful installation to avoid damage.
Barker 10893 Tote Tank – 10 Gallon Capacity , Blue
Looking for a reliable solution to manage your greywater? The Barker 10893 Tote Tank offers a 10-gallon capacity, making it perfect for your needs. Constructed from sturdy polyethylene, this blue tank measures 30 3/8″ long, 15 1/8″ wide, and 6 1/4″ deep, weighing just 9.7 pounds. It features a convenient 3 vented cap and a 3/4 hose outlet for hassle-free dispensing. With large wheels, you can easily transport it wherever you go. Rated 4.5 out of 5 stars by over 1,500 customers, it’s a top choice in RV black water tanks. Enjoy sustainable water management with ease!
Best For: Those seeking a reliable and portable solution for managing greywater in RVs and outdoor settings.
Pros:
- Convenient size: 10-gallon capacity is perfect for short trips and quick disposal.
- Easy transportation: Large wheels and lightweight design facilitate effortless movement.
- User-friendly features: Includes a vented cap and hose outlet for hassle-free dispensing.
Cons:
- Limited capacity: May not be sufficient for longer trips or larger groups.
- Plastic construction: Potential concerns about durability over time compared to metal options.
- Weight distribution: Some users may find it challenging to maneuver when full.
Factors to Consider When Choosing a Greywater Holding Tank
When you’re choosing a greywater holding tank, consider several key factors to guarantee it meets your needs. Think about tank capacity, material durability, and how you’ll install it. You should also account for ventilation needs and the type of waste your system will handle.
Tank Capacity Requirements
Choosing the right greywater holding tank involves several key factors, with capacity being one of the most crucial. Start by evaluating the number of users and how often you’ll need to empty the tank. Common sizes range from 10 to 34 gallons, so you’ll want to select one that complements your needs. On average, a person produces about 15 to 30 gallons of greywater daily, which can help you estimate the appropriate tank size. A larger tank offers the advantage of longer use between dumps, particularly useful during extended trips. Don’t forget to check that the tank fits the available space in your RV or camper, and consider whether it’ll be for temporary or permanent use.
Material Durability Factors
Selecting the right greywater holding tank involves not just considering capacity but also the material’s durability. Medium Density Polyethylene (MDPE) is a popular choice due to its resistance to impact and UV degradation. If you’re looking for enhanced protection against sun damage and leaks, opt for UV-stabilized blow-molded HDPE tanks. The thickness of the material matters too; thicker tanks withstand pressure and resist punctures better. Don’t overlook temperature resistance, as extreme heat or cold can make some materials brittle or cause deformation. Finally, remember that regular maintenance and cleaning can greatly extend your tank’s lifespan by preventing corrosive buildup that weakens the material over time. Choose wisely to guarantee long-lasting performance!
Installation Considerations
Proper installation is essential for the effective functioning of your greywater holding tank, as it directly impacts its longevity and performance. First, make certain the tank is properly vented to allow air circulation, preventing pressure build-up that can cause damage. The tank should have a fixed outlet compatible with the necessary PVC or ABS piping for efficient dump valve installation, but remember that fittings and hardware typically aren’t included. Carefully consider where to place inlet and vent fittings, as you’re responsible for their ideal location. Avoid over-tightening fittings during installation to prevent leaks or damage. Finally, verify the tank is securely mounted to avoid movement and shifting when full, which can stress the tank and lead to failure.
Ventilation Needs
When installing a greywater holding tank, paying attention to ventilation needs is just as important as the tank’s positioning. Proper ventilation allows air flow and prevents pressure buildup, which can lead to leaks or ruptures. Venting is essential for letting gases escape from the decomposition of waste, reducing odors and promoting a healthier environment in your RV. You’ll need to carefully determine the inlet and vent placement during installation, as improper positioning can hinder efficiency and functionality. Tanks designed for greywater use specifically require venting to guarantee smooth drainage and avoid vacuum conditions that block waste flow. Additionally, regularly check and maintain vent fittings to prevent blockages that could cause malfunctions or overflow issues in your greywater system.
Waste Type Compatibility
Understanding waste type compatibility is essential for choosing the right greywater holding tank. Greywater tanks are specifically designed to handle non-potable wastewater, so they won’t work for fresh or drinking water. It’s important to select a tank that can accommodate your household’s waste volume, usually measured in gallons, to avoid overflow. Make sure the tank is constructed from durable materials like Medium Density Polyethylene (MDPE) to resist the corrosive nature of grey water and prevent leaks. Proper ventilation is also critical to allow airflow and prevent pressure buildup, which can lead to hazards. Finally, check that the tank’s fittings and connections are compatible with your existing plumbing system for seamless installation and functionality.
Mobility Features
Choosing a greywater holding tank with the right mobility features can make your water management system much more efficient. Look for tanks equipped with large wheels that allow for easy transportation, even when full. An oversized handle enhances maneuverability, making it simpler to lift and pull the tank as needed. Many portable tanks come with universal wheels on top and larger wheels below, providing smoother movement and stability. Consider designs with a removable tow adapter for convenient towing behind vehicles like trucks or golf carts. Additionally, a built-in level display can indicate when it’s time to empty the tank, reducing the risk of overfilling and ensuring hassle-free transport. These features can greatly enhance your greywater management experience.