Best RV Black Water Tanks of 2026

David Davis Avatar
David Davis
Last Updated: Jan 21, 2026

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RV Black Water Tanks are an essential component of any recreational vehicle. Designed to hold the waste generated by the vehicle's bathroom facilities, these tanks are made from durable materials that can withstand the rigors of travel. Available in a range of sizes and capacities, they are easy to install and maintain. Regular cleaning is important to prevent odors and ensure the tank functions properly. Many RV owners choose to use specialized chemicals designed to break down waste and reduce odors. Overall, RV Black Water Tanks are an important investment for anyone who enjoys traveling in their recreational vehicle.

At a Glance: Our Top Picks

Camco Rhino 21-Gallon Portable RV Tote Tank Cover #TOP 1
Camco Rhino 21-Gallon Portable RV Tote Tank
ftb score rating icon 9.9
Barker 4-Wheeler Tote Tank Cover #TOP 2
Barker 4-Wheeler Tote Tank
ftb score rating icon 9.8
YITAHOME 19.8 Gallon Portable Water Tank Cover #TOP 3
YITAHOME 19.8 Gallon Portable Water Tank
ftb score rating icon 9.6

Top 10 RV Black Water Tanks

#TOP 1

Camco Rhino 21-Gallon Portable RV Tote Tank

39002
Gray
21 Gallon
Camco Rhino 21-Gallon Portable RV Tote Tank Cover
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 Portable RV Tote Tank is designed to transport waste from your RV or trailer to a dump station. It has large no-flat wheels that make transportation smooth and effortless. The low drain hole ensures that the tote tank empties completely and the smooth interior is easy to wash off using the integrated tank rinser. The tote tank is constructed of extremely durable blow-molded HDPE that won't leak or deteriorate in the sun. It comes with a steel tow adapter and integrated ladder hook for easy transport and storage.

What We Like
Exceptional build quality
Complete feature set
Easy mobility with front wheels
Odor containment
Convenient gate valve
What We Don't Like
Minor hose connection leaks
#TOP 2

Barker 4-Wheeler Tote Tank

30844
Multi-Coloured
42 Gallon
Barker 4-Wheeler Tote Tank Cover
Barker (30844) 4-Wheeler Tote Tank - 42 Gallon capacity

The Barker Tote Tank is a versatile 42-gallon capacity RV black water tank designed for easy maneuvering and convenient waste disposal. Constructed from durable blow-molded polyethylene, zinc-plated steel, and aluminum, this tote tank is built to last. The front-mounted double wheel-swivel allows for smooth and quiet rolling, while the heavy-duty mounting plate ensures stability. With the quality 3-inch waste valve, you no longer have to lift the tank to empty it. Simply open the valve for easy and hassle-free waste disposal. The Barker Tote Tank is a reliable and convenient solution for your RV black water needs.

What We Like
Heavy-duty pneumatic tires
Easy maneuverability
Sturdy metal handle
Secure, mess-free connections
Fully assembled on delivery
What We Don't Like
Hose quality could improve
No built-in hose storage
#TOP 3

YITAHOME 19.8 Gallon Portable Water Tank

MAYIH0009609MA
Gray
19.8 Gallon
YITAHOME 19.8 Gallon Portable Water Tank Cover
YITAHOME 19.8 Gallon Large Capacity Portable Water Holding Tank with Built-in Handle Odorless Tote for Camper with Large Universal Wheels, Filling Port, Rotating Spout for Easy Carry & Fast Empty

The YITAHOME Water Holding Tank offers a generous 19.8-gallon capacity, allowing you to transport fresh or wastewater efficiently, reducing the need for frequent trips. It features multiple outlets for both filling and draining, which means you can quickly fill or empty the tank, saving you valuable time. The built-in level indicator alerts you when it's time to empty the tank, preventing any messy overflows. Plus, its design makes it easy for anyone to move, thanks to the large wheels, ensuring you can handle it comfortably even when it's full.

What We Like
Large capacity
Durable construction
Easy to clean
Lightweight when empty
Multiple opening options
What We Don't Like
Handle could be longer
Non-standard US connections
#TOP 4

Mopeka Pro Check Universal Sensor

M1017020A
Mopeka Pro Check Universal Sensor Cover
Mopeka Pro Check Universal Sensor - Bluetooth Ultrasonic Sensor for Aluminum, Plastic & Poly Tanks - Perfect for Propane Grills, Water Tanks & Campers - Water Level Sensor Up to 250 Gallon Tanks

The Mopeka Pro Check Sensor lets you easily monitor your tank levels on aluminum, plastic, and poly tanks with excellent accuracy, so you always know what’s inside. It’s not just for propane—you can track diesel, oil, water, and other liquids, making it perfect for grills, RVs, and boats. The sensor’s battery lasts up to five years, so you don’t have to worry about frequent replacements, even if your tanks are outdoors or hard to reach. Installation is quick and simple, with a sturdy mounting collar that keeps the sensor firmly in place no matter where you’re traveling. This makes checking your tank levels hassle-free and reliable.

What We Like
Real-time level monitoring
User-friendly mobile app
Customizable low-level alerts
Easy installation process
Reliable for multiple tank types
What We Don't Like
Limited Bluetooth range
Occasional inconsistent readings
#TOP 5

Thetford Cassette Waste Tank 20097706

20097706
neutral
Thetford Cassette Waste Tank 20097706 Cover
Thetford 20097706 Cassette Waste Tank

Thetford Waste Tank is a portable solution designed to make waste management easier for your RV experience. Its rotating pour spout allows you to empty the tank smoothly without splashing, keeping things clean and hassle-free. This tank is specifically made to work with the Thetford C220 toilet, ensuring compatibility and reliable performance. Plus, it comes with a sturdy handle and wheels, so you can move it around effortlessly, even when it's full. This combination of features provides a convenient and user-friendly way to handle your black water needs on the go.

What We Like
Perfect fit replacement
Leak-free operation
Odor containment
Prompt delivery
Backup capacity option
What We Don't Like
Packing material could be improved
May require screw tightening
#TOP 6

BARKER 11104 Tote-Along 22 Gallon Tank

11104
Blue
22 Gallon
BARKER 11104 Tote-Along 22 Gallon Tank Cover
BARKER 11104 Tote-Along Tank - 22 Gallon, Blue

The BARKER Tote-Along Tank offers a lightweight design, weighing only 16 pounds when empty, making it easy for you to transport and handle. Its durable polyethylene build combined with sturdy zinc-plated steel brackets ensures long-lasting strength and resistance to damage. The tank features extra-large, heavy-duty wheels that help you move it smoothly over various surfaces, adding convenience during use. Additionally, it comes with a tow bracket and a 5-foot sewer hose, giving you everything you need for easy connection and mobility. This tank is a reliable choice for managing your RV waste efficiently and comfortably.

What We Like
Easy to use and dump
High quality construction
Convenient for camping or RV
Good customer service
Compact and easy to store
What We Don't Like
Handle and wheels need improvement
Small size requires multiple trips
#TOP 7

classAcustoms WT-1653 16 Gallon Black Water RV Holding Tank

WT-1653
classAcustoms WT-1653 16 Gallon Black Water RV Holding Tank Cover
classAcustoms WT-1653 3" Black Water RV Waste Holding Tank 16 Gallon Concession and Camper Waste Black Gray Tank

The classAcustoms Black Water Tank is a 16-gallon waste holding tank designed specifically for RVs, campers, trailers, and tiny houses. Made in the USA from durable Medium Density Polyethylene, it’s built for gray and black water storage only, ensuring you don’t mistakenly use it for fresh or drinking water. The tank features a fixed 3-inch ABS female outlet pipe, which is designed for easy connection to your waste system, though you’ll need to add your own piping and dump valve. While the outlet is pre-installed, you decide where to place the inlet and vent for proper air flow, helping prevent pressure buildup and making waste disposal more efficient and hassle-free.

What We Like
Easy installation process
Perfect fit for trailers
Lightweight design
Good quality construction
Flexible sizing options
What We Don't Like
Slow customer service response
Rare shipping damage
#TOP 8

UTVJATV 2.6 Gallon 10L Storage Container

EG-QPLP21006-10L +EG-QPLP21006RS
UTVJATV 2.6 Gallon 10L Storage Container Cover
UTVJATV 2.6 Gallon 10L Storage Container with Lockable Bracket, Cannot hold drinking water

The UTVJATV 10L Storage Container is made from high-density material that is both strong and lightweight, making it easy for you to carry while ensuring durability and safety. Its design includes special holes to prevent pressure buildup, so you don’t have to worry about delays or extra effort when storing water. The container comes with built-in plumbing, allowing for quick and easy setup, saving you time. Plus, with secure locks on the brackets, you can travel worry-free knowing your water won’t leak or spill, and the container stays firmly in place during your trips.

What We Like
Excellent performance
Thick durable plastic
Extends refueling interval
#TOP 9

Venustank 30 Gallon Portable RV Waste Tank

Venustank
TK30-2W
Black
30 Gallon 2 Wheel
Venustank 30 Gallon Portable RV Waste Tank Cover
Venustank 30 Gallon RV Portable Waste Tank 2 Wheel Tote Tank

The Venustank RV Waste Tank is designed to make waste disposal easy and convenient when you're away from standard sewer hookups. It comes as a complete kit with all the tools you need to transfer waste from your RV to a dump station, making it ideal for remote or extended parking. The large solid rubber wheels and a 22-inch tow bar let you easily roll it like luggage or tow it behind a vehicle, reducing the effort required to move it. Cleaning is simple thanks to the smooth interior and gate valves, plus a built-in rinser helps keep the tank fresh. When not in use, you can securely store the tank by hanging it on your RV ladder.

What We Like
Heavy duty construction
Easy to assemble and use
All necessary attachments included
Steel wheels and secure fastening
Leak-free tank design
What We Don't Like
Heavier than expected
Dump hose leaks slightly
#TOP 10

dreamdragon 29Gallon/110L Portable Water Storage Tank

JHWT000001-5
Translucent White
29Gallon / 110L
dreamdragon 29Gallon/110L Portable Water Storage Tank Cover
29Gallon/110L Water Storage Tank, Portable Water Tank for Outdoor Camping,Farms and Gardens, Rectangular Translucent White

The dreamdragon Portable Water Tank offers a large capacity, available in several sizes including 29 gallons, giving you plenty of water storage for camping, gardening, or emergencies. Made from durable, BPA-free PVC and thick polyethylene, it ensures your water stays safe and the tank resists tears and impacts. Its design is very user-friendly, featuring a wide 7-inch screw-on cap that makes filling and cleaning quick and easy. The rectangular shape helps you save space whether you store it in your vehicle or home. This tank is a practical and reliable choice for various outdoor and household water needs.

What We Like
Large water capacity options
Durable, BPA-free material
Easy filling and cleaning
Space-saving rectangular design
What We Don't Like
Threading on discharge nipple needs improvement
Possible shipping or fulfillment issues
Buying Guide Image

Frequently Asked Questions (FAQs)

1. How often does an RV black water tank need to be emptied?

The frequency of emptying an RV black water tank depends on factors such as the number of people using it, toilet paper usage, and water usage. As a general rule, it's recommended to wait until the tank is about two-thirds full before emptying it. For larger groups, it may be necessary to empty the tank every other day, while for smaller groups, once a week may suffice.

2. How long will a 40 gallon black water tank last?

The duration a 40-gallon black water tank lasts depends on various factors. Some RVers report that it can last two people approximately 10 days before needing to be emptied. However, this can vary based on factors like toilet paper usage, water usage, and the number of people using the water systems. It's recommended to empty the tank when it is two-thirds or three-quarters full.

3. What is the average size of the black water tank on an RV?

The average size of an RV black water holding tank ranges from 15 to 50 gallons. The frequency of tank emptying will depend on the tank's size and the number of people using it. More occupants in the RV will require more frequent tank dumping.

4. Should I leave water in my black tank when not in use?

It is advisable to empty and flush your black water tank after each camping trip. Storing your RV with wastewater in the tank is not recommended. Flushing the system thoroughly is essential to maintain cleanliness and prevent odors.

5. How long can I leave waste in my black tank?

Leaving waste in the black water tank for longer than one week is not recommended. Extended storage can lead to the development of foul odors, which can spread throughout the RV. It's important to empty the tank regularly to maintain a pleasant environment.

6. What to do after emptying black water tank?

After emptying the black water tank, it's crucial to flush it with clean water to remove any residual waste and prevent odors. Connect your RV to a water source and run a hose into the black tank until the water runs clear. Optional steps include using enzymes, cleaners, and disinfectants.

7. Can you drive with black tank full?

Driving with a full black tank is generally not a problem, as the tanks are designed to be full while in motion. The sloshing of water inside the tank can aid in the degradation of waste. It's still recommended to empty the tank when it is two-thirds full to avoid any potential issues.

8. What are the disadvantages of black water tanks?

One disadvantage of black water tanks is that they can absorb more heat from the sun, resulting in the water becoming warm or hot rather than refreshing. This can be a concern if the water is used for purposes such as drinking.

9. Should you put bleach in your black water tank?

Using bleach or antifreeze for deep cleaning your black water holding tank is not recommended, as these substances can dry out rubber seals and potentially damage the sewage system. It's best to clean the tank when fully hooked up with water and sewer connections.

10. Do you keep black tank open when emptying gray tank?

It is important to keep the black tank valve closed unless actively dumping a full tank. On the other hand, the gray valve can stay open when connected to a sewer hook-up and closed while dry camping or boondocking. Leaving the black water valve open can hinder the functioning of waste-eating bacteria.

Editor's Notes

During our rv black water tank research, we found 24 rv black water tank products and shortlisted 10 quality products. We collected and analyzed 138,059 customer reviews through our big data system to write the rv black water tanks list. We found that most customers choose rv black water tanks with an average price of $170.41.

The rv black water tanks are available for purchase. We have researched hundreds of brands and picked the top brands of rv black water tanks, including Camco, BARKER, YITAHOME, Mopeka, Thetford. The seller of top 1 product has received honest feedback from 384 consumers with an average rating of 4.7.

Written by
David Davis Avatar

David Davis has rich experience as a mechanic and a general repairman in the automotive industry. It has given him plenty of knowledge in automobile repair, auto parts, and all kinds of tools. In his spare time, he enjoys assembling and disassembling parts for cars.

RV Black Water Tanks Comparison Table

#TOP1
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#TOP3
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#TOP10
Brand Camco BARKER YITAHOME Mopeka Thetford BARKER classAcustoms UTVJATV Venustank dreamdragon
Material High Density Polyethylene Synthetic Plastic, Polypropylene (PP) - High Density Polyethylene (HDPE) - - Blow molded Plastic Polypropylene (PP)
Color Gray - Gray - - - - Red Black Translucent White
FTB Score
ftb score rating icon 9.9
ftb score rating icon 9.8
ftb score rating icon 9.6
ftb score rating icon 9.4
ftb score rating icon 9.2
ftb score rating icon 9.0
ftb score rating icon 8.9
ftb score rating icon 8.9
ftb score rating icon 8.9
ftb score rating icon 8.7
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