Camping trips generate a steady stream of wrappers, food scraps, and dirty dishes, and stuffing everything into a flimsy grocery bag rarely ends well. You need a container that holds real volume, collapses flat for the drive home, and survives wet grass, muddy boots, and crowded car trunks. The Camco Rhino lineup and its macerator companion handle that workload across a range of trip lengths and rig sizes. The list below covers the tank sizes, wheel setups, and pumping options worth weighing before you load up.
A Quick View Of The Lineup
Camco Rhino 28-Gallon Camper/RV Tote Tank
Camco Rhino 21-Gal RV Portable Tote Tank
Camco Rhino 15-Gal RV Portable Tote Tank
Camco Rhino 18V Cordless RV Macerator Pump
Camco Rhino 36-Gallon RV Tote Tank
Camco Rhino 28-Gal RV Tote Tank – Steerable Front Wheels
What Each Pick Brings To The Table
The 28-gallon Rhino has earned its reputation among full-time RVers who routinely park far from a sewer hookup. A built-in gate valve controls flow during dumping, and the heavy-duty no-flat wheels are sized to swallow gravel roads without sinking in. Owners towing with a golf cart or small truck appreciate the removable steel tow adapter, which clips on without tools.
Unlike the smaller 15-gallon tote further down this list, this one holds enough capacity for a family of four over a long weekend without mid-trip dumps. Depending on your tow vehicle and the terrain between your campsite and the dump station, the empty weight stays manageable on flat ground.
What Earns Its Place
- Large 28-gallon capacity handles multi-day black-water loads without mid-trip dumps
- No-flat wheels roll across gravel, grass, and pavement without losing traction
- Removable steel tow adapter connects to a truck or golf cart for hands-free hauling
- Built-in gate valve gives you controlled release at the dump station, reducing splashing
- Oversized handle improves grip and steering when maneuvering by hand
Things To Consider
- Empty weight adds up once filled, so plan your route before towing across uneven ground
- Large footprint takes meaningful cargo space during the off-season
Who Will Love This
RVers running a household-sized rig on trips longer than a single weekend, especially anyone parked away from a direct sewer connection.
Reach For A Different Pick When
Solo travelers with tight basement storage should consider the more compact Camco Rhino 15-Gal RV Portable Tote Tank further down this list.
The 21-gallon tote splits the difference between the compact 15-gallon and the full-size 28-gallon models. Couples and small families tend to land here because it holds a comfortable weekend’s worth of waste without dominating the cargo bay. No-flat wheels and the oversized handle stay consistent with the larger Rhino, so you don’t give up maneuverability for the smaller footprint.
For most RVers who camp three or four nights at a stretch, this tank keeps dump trips to once per stay without overflowing. You may find the 21-gallon capacity tight if you run a residential-style RV fridge and shower daily.
Real-World Strengths
- 21-gallon capacity suits two to four people on a three-to-four-night trip
- No-flat wheels and oversized handle match the bigger Rhino’s towing ease
- Steel tow adapter lets you haul it behind a truck without lifting
- Domestic manufacturing means replacement parts tend to stay available
Honest Caveats
- Mid-size tank still weighs roughly 40 pounds empty, so hand-rolling uphill is a workout
- Doesn’t include the front-steering wheel design that the 28-gallon steerable model offers
Key Product Details
Best Suited To
Couples and small families who want weekend capacity without the bulk of a 28-gallon tank.
A Better Fit Elsewhere
Anyone who regularly camps with a full household should move up to the Camco Rhino 28-Gallon Camper/RV Tote Tank above.
The 15-gallon tote is the lightest member of the Rhino family and the easiest to stow in a van, truck bed, or small travel trailer. Solo campers or couples running a popup tend to gravitate toward this size because it tucks into the narrow storage bays that reject bigger tanks. Heavy-duty wheels keep it rolling over the same terrain as its larger siblings.
If you travel light and rarely stay more than two nights, the 15-gallon capacity covers a typical visit without forcing a mid-trip dump. For longer stays or bigger households, plan on extra trips to the dump station.
Standout Benefits
- Compact 15-gallon size fits small storage bays that reject larger tanks
- Lighter empty weight makes solo transport realistic without a tow vehicle
- Heavy-duty wheels handle gravel and wet grass without sinking
- Simpler design reduces the number of parts to clean between trips
Worth Noting
- Smaller capacity means more frequent dump trips for families or longer stays
- Doesn’t include the steel tow adapter found on the larger Rhino models
- Less margin for error if your campsite sits far from the dump station
Right Fit For
Solo travelers and couples with popup campers or van conversions who need a tote that disappears into a small storage bay.
Look Elsewhere When
Anyone running a full household for a week should step up to the Camco Rhino 28-Gallon Camper/RV Tote Tank reviewed earlier.
This macerator pump is a different category from the tote tanks above. A macerator grinds waste into fine particles so it flows smoothly through a standard 3/4-inch garden hose, letting you pump uphill or over longer distances than gravity alone allows. The cordless 18V lithium battery removes the wiring and hookups that traditionally tether you to the RV’s electrical system.
RVers who dry-camp in remote spots without nearby dump stations get the most from this tool. You may find the battery useful across several dump cycles before needing a recharge, depending on tank size.
Notable Upsides
- Cordless 18V design frees you from wiring into the RV battery for power
- Macerating action grinds waste for clog-free flow through a standard garden hose
- Lets you pump uphill and across longer distances than gravity dumping
- Pairs naturally with the larger Rhino tote tanks for full off-grid flexibility
Trade Offs
- Battery runtime drops on heavier loads, so larger tanks may require a mid-cycle charge
- Hoses and fittings need thorough rinsing after each use to prevent residue buildup
Feature Snapshot
Made For
Off-grid RVers who dump at distance or elevation and want a cordless setup that pairs with the larger Rhino totes.
Skip It When
Campers who always park near a sewer hookup don’t need the grinding or pumping power, and the Camco Rhino 21-Gal RV Portable Tote Tank covers basic needs.
The 36-gallon tote is the largest in the Rhino family, designed for extended-stay households and full-timers who camp for weeks between dump station visits. It’s essentially a doubled-up version of the 28-gallon design with the same waste-handling hardware scaled up. The bigger tank reduces dump frequency, which matters when the nearest station sits an hour down the road.
You trade some maneuverability for that capacity. Depending on your campsite layout, the empty size requires planning before you roll it out of the cargo bay.
The Value In It
- 36-gallon capacity cuts dump frequency for long stays and full-time RVers
- Larger valve opening speeds up emptying at the dump station
- Compatible with the Rhino macerator pump for hybrid gravity-and-pump dumping
- Sturdy shell handles temperature swings in summer and shoulder-season trips
Minor Gripes
- Heaviest tote in the lineup, so towing is the practical choice over hand-rolling
- Demands meaningful cargo bay space and may not fit smaller travel trailers
Feature Rundown
Whose Shelf It Belongs On
Full-time RVers and families running long trips where the dump station sits far from the campsite.
Not Your Match When
Weekend travelers should consider the more manageable Camco Rhino 21-Gal RV Portable Tote Tank reviewed earlier in this guide.
The steerable 28-gallon model adds pivoting front wheels to the standard 28-gallon design. That single change makes a meaningful difference when you’re navigating narrow campsite paths, tight corners at the dump station, or uneven gravel pads. Compared to the fixed-wheel 28-gallon reviewed first, this one steers like a wheelbarrow instead of sliding like a sled.
For most RVers who hand-roll rather than tow, the steerable design reduces the upper-body effort needed to redirect the tank mid-route. It carries the same 28-gallon capacity, so capacity is not a sacrifice.
The Case For It
- Steerable front wheels let you redirect mid-route without lifting the tank
- Same 28-gallon capacity as the standard model for full weekend use
- Domestic manufacturing supports easier sourcing of replacement parts
- Pairs well with the Rhino macerator pump for hybrid pumping setups
Points To Keep In Mind
- Slightly higher cost than the fixed-wheel 28-gallon for a steering-only upgrade
- Steering hardware adds a few extra cleaning steps after each dump
Perfect Match For
RVers who hand-roll to the dump station through tight campsite paths and want a tank that steers instead of slides.
Consider Something Else When
Campers who always tow rather than roll should save money with the standard Camco Rhino 28-Gallon Camper/RV Tote Tank reviewed first.
Matching The Right Tote To Your Trip Style
Capacity sets the floor for any waste tank decision. A solo camper running a popup for two nights can usually clear a weekend with a 15-gallon tote, while a family of four in a motorhome needs 28 gallons or more to avoid mid-trip dumps. Trip length, rig size, and number of campers each shift that number, so resist the urge to overbuy if you dry-camp only a few times each season.
Wheel and towing design matters more than most people expect. Fixed rear wheels work fine on paved paths but can dig into soft grass or fresh gravel. Steerable front wheels trade a small price bump for noticeably easier control around trees, picnic tables, and dump station corners. If your tow vehicle is always nearby, a steel tow adapter saves your back; if not, prioritize handle ergonomics and wheel design.
Pump support turns a tote into a full off-grid system. A macerator pump grinds waste and pushes it through a garden hose, which means you can dump uphill, across long distances, or into restricted-access cleanouts. That tool earns its cost when your favorite campground sits far from a sewer hookup. If you always park near a station, gravity dumping through a tote alone is enough.
Storage footprint is the trade-off nobody mentions first. Bigger tanks hold more but eat cargo bay space year-round. Measure your storage compartment before committing, and remember that the heaviest 36-gallon model needs a real tow setup rather than a hand-roll across the site.
Key Considerations Across These Picks
Where Shoppers Go Wrong
The most common slip-up is choosing a tank based on the largest capacity without checking the empty weight. A 36-gallon tote that you can’t physically roll to the dump station is useless, so always match tank size to your tow or hand-rolling setup. Another mistake is skipping the macerator question entirely: campers who dump uphill or at distance discover the limitation fast and end up buying a pump later anyway. Finally, don’t assume all wheels are equal, since fixed rear wheels sink in soft ground far more easily than no-flat or steerable setups.
Where The Extra Money Goes
Higher-tier models earn their cost through three real upgrades: steering hardware for easier navigation, larger valve openings for faster emptying, and compatibility with macerator pumps for off-grid flexibility. The 36-gallon tank, for instance, is priced for capacity plus a heavier-duty shell that resists cracking in cold weather. For full-timers and large households, that premium pays back in fewer dump trips and smoother long-term use. For weekend travelers, the standard 28-gallon tote typically covers everything you need without the upgrade.
Frequently Asked Questions
How do I clean a portable RV tote tank between trips?
Rinse the interior with fresh water through the gate valve after each dump, then add a small amount of RV-safe holding-tank treatment and water for storage. A long-handled tank rinser speeds up the process and reaches the corners most owners miss.
Can I tow a tote tank behind any vehicle?
The steel tow adapter fits standard hitch receivers and trailer balls, but check the empty weight of your chosen tote against your vehicle’s towing capacity. The 28- and 36-gallon models are heavier and benefit from a vehicle rated for the load.
How often should I empty the tank at the dump station?
Dump when the tank reaches roughly two-thirds full to avoid spills and keep the gate valve manageable. Waiting until the tank is completely full makes opening the valve messier and stresses the fittings over time.
Do I need a macerator pump if I always park near a sewer hookup?
No, gravity dumping through the tote’s gate valve handles short, level routes just fine. A macerator only earns its cost when you need to pump uphill, across long distances, or into a restricted cleanout.
What storage prep should I do before winter?
Fully empty the tank, rinse it thoroughly, and store it with the gate valve open to prevent residual moisture from freezing and cracking the seals. Keeping it out of direct sunlight also protects the plastic shell through the off-season.
The Takeaway
The right collapsible waste setup depends on how far you camp from a sewer hookup, how many people travel with you, and how much cargo space you can spare. Weekend travelers usually find their fit in the 15- or 21-gallon range, while full-timers and large households lean toward the 28- or 36-gallon options. If you camp off-grid often, adding the cordless macerator pump turns any tote into a true remote-ready system. Match the tank to your trip profile rather than chasing the biggest capacity, and the rest of the choice tends to fall into place.