BestReviews is reader-supported and may earn an affiliate commission. Details.
Which portable waste tank is best for your RV?
Camping for extended periods in your recreational vehicle (RV) is a great way to get away from the hustle and bustle of everyday life. If you spend more than a couple of days in your RV, you’ll almost definitely have to dump your black and gray tanks.
Portable waste tanks offer a convenient way to empty your waste without the hassle of packing up your entire RV or travel trailer. Portable waste tanks aren’t cheap — before investing in the best RV portable waste tank, you’ll want to take time to understand the differences between them.
Shop this article: Camco 39000 Rhino Heavy-Duty Two-Wheeled Waste Holding Tank, Barker 30-Gallon Tote Tank and Camco Rhino Heavy-Duty Four-Wheeled Waste Holding Tank
Things to know before you buy a portable RV waste tank
Types of portable RV waste tanks
The two primary types of portable waste tanks for RVs are two-wheeled tanks and four-wheeled tanks.
Two-wheeled tanks are often more affordable and less bulky than four-wheeled tanks. The only major drawback to using a two-wheeled tank is that you have to lift one end of it to hitch it to your truck — many tanks are 20-40 gallons, which can weigh 160-320 pounds when full, so this is no easy task.
Four-wheeled tanks offer more maneuverability than two-wheeled tanks and don’t require you to lift them to connect to your vehicle. The carrying capacity of four-wheeled tanks is often larger than two-wheeled tanks, which can mean the equipment is comparatively sizeable.
Other factors to consider
- Wheel durability: Because of the enormous weight of the equipment and the nature of what you’re using it to transport, a flat tire is a disaster that you’ll want to avoid at all costs. Wheels made with no-flat material rather than rubber are ideal, but there are capable models with rubber wheels as well.
- Inlet port height: The inlet port for your sewer hose may sit higher off the ground on some larger portable waste tanks. Get an idea of how high off the ground the portable tank’s inlet is, as well as the height of your RV’s outlet.
RV portable waste tank cost
A good two-wheeled tank costs $150 to $200, depending on the brand and size. Four-wheeled tanks cost around $200 to $300 or up to $400 for those that can carry 40 gallons or more.
Other necessary RV equipment
Camco RhinoFLEX Tote Tank 3-Foot Sewer Hose
You need a small RV sewer hose to connect the portable waste tank to your RV. Some portable waste tanks come with small RV sewer hoses, but many of the included hoses aren’t built to last.
Camco 39736, RhinoFlex Clear RV Sewer Hose Elbow
You’ll use a sewer hose with two bayonet fittings when emptying your RV tank into the portable tank. But, you still need a sewer hose seal when you empty the portable tank.
Briggs and Stratton 25-Feet Premium Heavy-Duty Rubber Garden Hose
Some portable tanks are sloped inside to ensure that all the waste drains out, but you should rinse them out regularly with a garden hose.
Best RV portable waste tanks
Top two-wheeled portable RV waste tanks
Camco Rhino 15-Gallon Portable Camper/RV Tote Tank
What you need to know: This heavy-duty portable waste tank has durable wheels that won’t go flat and comes with nearly everything you’ll need to empty your tank.
What you’ll love: Camco’s rugged Rhino waste tank has a built-in ladder hook that clamps onto your RV’s ladder for easy transport. The waste tank’s interior is extra-smooth, so it doesn’t trap grime or odor and slopes toward the drain for added convenience. This model does an exceptional job at trapping smells — it even has an additional water inlet that functions as a built-in multidirectional tank rinser. The detachable tow bracket is easy to use.
What you should consider: The cap doesn’t have a bobber to alert you when it’s full. You may be able to find a third-party lid with a bobber that will fit, but Camco doesn’t make one.
What you need to know: This portable waste tank comes in 10-, 15-, 22- and 30-gallon capacities to suit various needs. It’s equipped with heavy-duty wheels and zinc-plated steel brackets for convenient, secure transport.
What you’ll love: Each tank comes with everything you need for installation: a 3/4-inch garden cap hose, a 3-inch bayonet cap, two 3-inch hose adapters, two 3-inch stainless steel adjustable clamps and a 1/2-inch drain hose.
What you should consider: A tow bracket and 5-inch sewer hose are included with all but the 10-gallon model.
Top four-wheeled portable RV waste tanks
Camco Portable 36-Gallon Waste Holding Tank Kit
What you need to know: It’s no surprise that Camco’s four-wheel waste wagon is the best overall choice; they’re the most well-known and trusted name in RV waste accessories. Their four-wheel model offers the same durability and cleanliness as their two-wheel model, but it’s easier to maneuver.
What you’ll love: This four-wheel RV portable waste tank offers all the same features as the two-wheeled version, but you don’t have to lift it to hook it up, and it’s easier to steer.
What you should consider: Due to this tank’s large size, the hose intake sits high off the ground. If your tank output is less than 11 inches off the ground, emptying into this tank might not be as easy as you’d like.
Barker 4-Wheeler 42-Gallon Tote Tank
What you need to know: This sturdy waste tank is equipped with durable rubber wheels and a convenient bobber gauge that tells you when it’s full.
What you’ll love: This tank is easy to hitch to your truck and has up to 42 gallons of storage.
What you should consider: Although the bobber gauge is convenient, it isn’t built to last. This portable RV waste tank sits low to the ground, which can be frustrating in parks with speed bumps. The tank’s design makes it difficult to empty.
Prices listed reflect time and date of publication and are subject to change.
Check out our Daily Deals for the best products at the best prices and sign up here to receive the BestReviews weekly newsletter full of shopping inspo and sales.
Copyright 2024 BestReviews, a Nexstar company. All rights reserved.