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While planning long road trips with your family or friends, the waste tanks are not the first thing that crosses your mind. But it is an important consideration, especially when there are no dump stations nearby. For long trips, an RV black water storage tank is not sufficient and might need an expansion tank.

Not only long road trips, but for campsites with no sewage connection, the best RV portable waste tank will come in handy. In fact, these are a must-have while planning a long trip far from civilization.

A waste tank allows you to dump your grey or black water storage tank without causing much trouble.

RV Portable Waste Tank Reviews

It is important to choose the right portable waste tank to avoid any inconvenience in your trip.

For instance, there is a difference between 2 wheeler and 4 wheeler versions of the RV sewer tank. While the 2 wheeler only has wheels on the back, the 4 wheeler has wheels on all 4 sides. A 2 wheeler is a more difficult tank to operate. It not only demands more strength but is also harsh on your back. You will find the 4 wheeler tank easier to operate on almost all surfaces.

The bright side of choosing a 2 wheeler tank is the low cost. While the 2 wheeler might be easy on your pocket, you will realize over time that the actual value for money is received from the 4 wheeler portable RV septic tanks. The extra money saves you from the backache of dragging extremely heavy water tanks.

Like this, there are several other factors to consider while choosing the best RV portable waste tank that suits all your needs. However, we understand that it is a time-consuming process and might require outside help. 

 We have made your job easier by providing the RV portable waste tank reviews by considering multiple factors. 

Top 10 RV Portable Waste Tanks

1. Barker (30844) 4-Wheeler Tote Tank

Barker (30844) 4-Wheeler Tote Tank

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This is one of the best RV portable waste tanks available in the market. It is constructed from premium quality materials like blow-molded polyethylene, zinc-plated steel, and aluminum.

It is available in 3 sizes, which are 25 gallons, 32 gallons, and 42 gallons.

The tank is quiet and rolls smoothly on all surfaces. The 4 wheeler tote tank includes 5 feet sewer hose, bayonet fittings, and a tow handle. The front double wheel swivels are easily maneuverable. Moreover, these are mounted on a strong and heavy-duty mounting plate.

These features make the Barker Tote Tank the most recommended product in the market. The 4 wheels save a lot of time and energy to move or dump.

This 4 wheeler RV sewer tote tank features a 3 inches valve to save you from lifting the tanks while dumping.


  • Eliminates the need to lift the tank while moving or dumping
  • It is made from premium-quality and durable materials
  • Features a 3” valve for easy unloading
  • Features a full tank indicator
  • The wheels are ideal for all-terrain use


  • It is expensive

2. Thetford SmartTote2 Portable RV Waste Tote Tank 40501

Thetford SmartTote2 Portable RV Waste Tote Tank

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If you insist on purchasing the 2 wheeler portable RV septic tank, go ahead with this one.

It gains maximum points for versatility as it is usable with any RV type, without making any changes. The tank has a capacity of 18 gallons with easy unloading features.

The tank has a retainer strap, which allows you to hold the heavy-duty sewer hose in place. It also includes an optional tow strap, which helps the tote to hook itself to the RV.


  • Easy to maneuver
  • Highly versatile
  • Features AutoStop level gauge
  • Tank weight is 10.55 pounds, which is lesser than a 4 wheeler


  • Not very convenient for uneven paths
  • Puts pressure on the back while maneuvering

3. Tote-N-Stor 25609 Portable Waste Transport

Tote-N-Stor 25609 Portable Waste Transport

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Tote-N-Stor has a wide range of portable waste transport in both 4 wheeler and 2 wheeler versions. This is a 2 wheeler portable dump tank with a capacity of 32 gallons. The tank weight about 26 pounds and is 45 inches wide. It also includes a 3 inches drain hose.

The tank is ideal for use in conjunction with a grey or black water storage tank. A unique feature is the inclusion of a separate compartment in the product for providing a special storage facility for the accessories.

The tow bracket is 8” long and is made from steel to ensure convenience and durability. This tow bracket lets you easily pull the tank behind your RV till the dump station.

The rubber wheels are built with rubber to allow easy maneuvering in difficult paths.


  • The tank has a high capacity
  • Includes an accessories compartment
  • Quiet rubber wheels


  • Need to lift the tank from the front for moving or dumping

4. SmartTote2 Portable RV Waste Tote Tank 40505

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This is another model from the Thetford 2 wheeler tote tank series. It is made from polypropylene and has a capacity of 12 gallons. The tote tank is useful in emptying the holding tanks without having to move your RV.

The tote tank features 2 rugged rubber wheels and a built-in handle for easy handling. There is an additional optional tow strap, for the purpose of hooking the tote tank onto a trailer hitch.

There is an indicator present in the tank, called the AutoStop TM level gauge. It helps to prevent overspills. It also ventilates the tote for emptying the tank faster.


  • Includes AutoStop Level gauge
  • Rubber wheels provide more durability and strength


  • Does not include a discharge hose
  • Need to uplift the tank while dumping
  • Might incur wear and tear easily

5. Class A Customs Black Water Holding Tank WT-2700

Class A Customs 27 Gallon RV Waste Black Water Holding Tank

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This is a high-capacity, and a durable Water Holding Tank by Class A. This black water storage tank has a 27 gallons capacity. It is quite useful for human waste or storing gray water while you are away from civilization.

The camper portable sewer tank is made from medium-density Polypropylene Resin. The construction of the tank is seamless. These qualities make it corrosion-resistant and rust-resistant. 

The tank has a length of 35”. The design has a 3” PVC pipe adaptor at one side of the tank.


  • Lightweight
  • Inexpensive
  • Durable material


  • Difficult to move it
  • Does not include any straps for convenience

6. Camco 39000 Rhino RV Waste Holding Tank

Camco 39000 Rhino Heavy Duty 15 Gallon Portable RV Waste Holding Tank

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The Camco RV waste tote tank is heavy-duty equipment with a strong structure. It is available in different capacities, namely 15 gallons, 21 gallons, and 28 gallons.

This kit includes all the features and accessories to ensure a convenient usage. Whether it is to transport waste from your RV to a dump station or to unload the dump, this Camco product does it efficiently.

This is a 2 wheeler RV waste tote tank with textured wheels to easily travel across various ground types. The drain hole is towards the lower end of the tank to enable easy emptying of the tank.

For sturdy clamping the tank on the RV, it has an integrated ladder hook. This is also ideal for clamping the tank to the camper ladder. The grooves on the body ensure that the strap is in place.

The tank is made from blow-molded HDPE, which is extremely durable and leakproof. It will remain intact even with constant sun exposure. 

The accessories in the set include 3″ sewer hose with bayonet and lug fittings, 15″ water hose rinse adaptor, clear double bayonet elbow, clear elbow with 4 in 1 adapter. Moreover, there are 3 storage caps, 2 caps with lanyards, TST orange drop-ins, and a steel tow adapter in the tank.


  • Includes a wide range of accessories
  • Sturdy and oversized handle
  • 2 years warranty
  • Heavy duty and sun-proof product
  • Sturdy and reliable transporting wheels


  • Heavy in weight

7. Tote-N-Store 20129 Portable Waste Transport 4 Wheeler

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This portable tank is the Tote-N-Stor 4 wheeler waste transport. It has several features that highly favor the campers or long term travelers. Firstly, the product is quite durable and sturdy. It also includes a 3-year manufacturer warranty. The tank is available in 18 gallons, 25 gallons, and 38 gallons capacities. 

The tank has a built-in storage compartment. This is one of the few tote tanks that allow you to store your extra hookup fittings. Moreover, the tank has a 3″ X 36″ waste drain hose and clamps. Other important accessories include the garden hose cap, hose adapter, and clamps.

The design is user-friendly and low profile, to enable easy storage. It also includes a vent system for quick filling and fast draining. However, the most important feature is the elimination of lifting the heavyweight tank while moving or draining.

The tow handle is quite strong and long, which makes it quite easy to steer. Moreover, it has a bracket to save it from galling to the ground once you let go.


  • Includes compartment storage
  • It has quiet rubber wheels
  • Includes the accessory kit
  • Long tow handle with brackets


  • Heavyweight
  • Expensive than 2 wheeler tanks

8. SmartTote2 RV Portable Waste Tote Tank – Thetford 40519

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This is one of the most convenient portable wastewater tanks for RV. It is versatile, accessible, and innovative.

What really stands out in this tank is the extendable handle. The handle is attached to the front wheels for maximum maneuverability. This makes it easier to steer the front wheels and give them directions with minimal efforts. You can gain a maximum speed of 5mph with this tank. The handle can also be hooked to the trailer hitch of the RV for easy towing.

Another great feature is the large port opening. This allows for easy rinsing of the interiors. I also include the AutoStop level gauge to keep track of the water level. It is triggered once the tote reaches its full capacity and prevents overspilling.

The RV waste tote tank includes a PermaStore Compartment. This compartment helps to protect the pre-attached hose or sewer fittings.


  • The handle is foldable when not in use
  • It includes a comprehensive manual
  • The design is quite innovative
  • Easy to maneuver


  • Might be a little flimsy

9. Barker (31342) Tote Tank – 2 wheeler

Barker (31342) Tote Tank - 30 Gallon Capacity

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Barker is a reliable brand for purchasing portable waste tanks. The 2 wheeler tanks from Barker are of fine quality. One big advantage of selecting a portable RV tote tank from Barker is the availability of various sizes. The range includes 5 sizes – 5 gallons, 10 gallons, 15 gallons, 22 gallons, and 30 gallons capacities.  

The tank is made from high-quality blow-molded polyethylene and has zinc-plated steel brackets running throughout. For easy draining, it includes 5” sewer hose.

Other impressive features are the sturdy and heavy-duty wheels, standard bayonet fittings, and tow bracket.

Moreover, the kit includes accessories like hose cap, adapters, and clamps. There are 2 adjustable clamps of 3 inches each, made from stainless steel.


  • Extensive size range
  • Includes a tow bracket and draining hose
  • Includes caps and accessories


  • Might be heavy while maneuvering
  • Not adequate for long trips

10. Tote-N-Stor 25608 Portable Waste Transport – 25 Gallon Capacity

Tote-N-Stor 25608 Portable Waste Transport - 25 Gallon Capacity

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This is yet another 2 wheeler portable dump tank by Tote-N-Stor. The product has some high reviews for use on short trips. Like other versions, this, too, includes a special storage compartment.

The rugged design is ideal for outdoor use. Moreover, you can bring it to use right after unboxing, as the product is completely assembled beforehand.

The tank comes with certain accessories, including a 36″ long drain hose. It also includes a hose clamp and a tow bracket. The tow brackets ease your trips to the drain station.

The tank is made from high-grade plastic and is corrosion or rust-resistant. The wheels are made from rubber, which is ideal for most terrain areas. However, if you face any issues with the wheels, these can be replaced.


  • Includes a storage compartment
  • Includes a tow bracket and drain hose
  • Heavy-duty and durable product


  • Might not be suitable for longer trips
  • Tires might cause issues in certain types of terrains


Q. How to fill the RV tote tank?

Follow the below-mentioned steps to fill the RV tote tank:

  1. Tightly connect the drain hose expansion on the tote tank to the dump fitting on the RV.
  2. Open the valve of the black water storage tank
  3. Once the tank is emptied completely, close the tank valve.
  4. Tightly seal the sewer connection using a cap and store the drain hose
  5. Transport the tote tank to the dump station


Q. How to empty the portable waste tank?

Depending on the type of the portable waste tank, you can either transport the tank manually or using your RV. If you have a 4 wheeler portable tank, you can directly connect the handle to the trailer hitch on the RV and drive slowly to the dump station.

Upon reaching, follow the steps below:

  1. Connect the waste tank to the sewer connection at the campground, using the drain hose.
  2. Open the main valve and the air valve to empty the tank. The air valve improves the airflow and speeds up the process.
  3. Make sure to hold the tank vertically to empty it completely.
  4. Use a water hose to flush the tank.
  5. Once the process is completed, close the caps of all connections.


Q. How to use a Rhino blaster?

Rhino Blaster is the sewer tank rinser by Camco. It securely attaches to your RV sewer outlet and helps you to rinse out the residue in the tank. 

The first step is to attach the rinser attaches via bayonet swivel fitting.

The direct jet creates a water stream that fully rinses the RV sewer system

The residue is then flushed out. The vacuum breakers ensure that there is no backflow in the water hose.


Q. How do you replace an RV waste valve?

The first step while replacing the waste valve is to determine the need for replacement. Some valves can be repaired too. However, replacing it is a better option as it saves a lot of time and effort. Next, you should rinse the valve and tanks twice to get rid of all the waste.

Step 1 – Remove the old valve

The valve is held together using two flanges. It is held using 4 nuts and bolts. Unscrew these to release the valve. You may need to twist the valve or apply pressure to pull the valve out.

Step 2 – Cleaning

The next step is to clean both the flanges properly. Then apply a light coating of grease on the new valve and the pipe.

Step 3 – Replace

Replace the rubber gaskets that hold the valve. Place new ones on the valve and then slide it between the flanges.

Step 4 – Secure the valve

Secure the valve using stainless steel nuts and bolts. However, avoid overtightening the bolts, which can cause trouble in the future.


Q. Can you hook your RV to the septic tank?

Yes, you can connect your RV to the septic tank. However, there are some words of cautions to follow to avoid any mess.

Firstly, make sure to use an elbow-shaped hose for avoiding splashes or messes. Moreover, do not overload the septic tank too quickly. Adding too much waste at once can cause a blockage in the system. It will take a lot of time to unclog it.

Do not use chemicals in your black water tank that may disrupt the breaking down process of the waste and affect the tank’s natural ecosystem.

Lastly, make sure that you are on the right side of the baffle while dumping from the access point. It is the one far away from the outlet port.


Q. How do RV holding tank sensors work?

RV Holding tank sensors use a circuit system. The sensors are installed vertically through the holding tank. Once the level rises to a particular level, the water conducts a small charge. This enables the completion of the circuit, which is indicated through a light on the indicator panel.


Q. How do I choose the right size of the RV extendable holding tank?

There are certain factors to consider while selecting the right capacity of the extendable portable RV holding tank.

The number of people going on the trip is an important factor. Another important consideration is the length of the trip. More the number, the higher the capacity for the holding tank.

You might want to go ahead with the highest capacity. However, there are a few drawbacks to it. A bigger tank adds to the cost and increases the weight in the RV.

Also, consider the capacity of the black water storage tank. Make sure that the portable tank has a capacity a little higher to the black water tank, to avoid any spillage while dumping.