The Camco Rhino 21-Gallon RV Portable Waste Tank is presented as a practical, well-built transfer solution. It uses UV-stabilized HDPE, holds 21 gallons (approx. 79.5 liters), and offers a low-drain design, heavy-duty no-flat wheels, an oversized handle, and a steel tow adapter. How does it perform on long hauls, in tight storage, and for routine cleaning — practical answers follow.
Key Takeaways
- Durable UV-stabilized HDPE body and smooth interior resist impact and simplify cleaning for long outdoor use.
- 21-gallon capacity with 40″ height enables effective gravity black-water transfer but limits extended boondocking.
- Heavy-duty no-flat wheels, oversized handle, and steel tow adapter make transport and towing easy on varied terrain.
- Integrated rinser, low drain, swivel 3′ sewer hose, and clear elbow simplify emptying and reduce leaks.
- Weighs 34.5 lb and is somewhat bulky when empty; 3′ hose may require extension for some setups.
Key Features and Build Quality
Durability matters: the Camco Rhino 21-Gallon tank combines rugged materials and practical features to handle regular RV use.
The 20 1/8″ x 12 1/2″ x 40″ HDPE body resists UV and impact, weighing 34.5 lb—portable yet sturdy.
What are notable features? Large no-flat wheels, oversized handle, steel tow adapter, low drain, integrated rinser.
What comes in the kit? 3′ sewer hose with swivel fittings, 15″ grey hose, clear elbows, storage caps, lanyards, tie-down straps.
How to store it? Use the ladder hook and compressible hose.
Design emphasizes leak prevention, easy cleaning, and long-term outdoor exposure.
Performance and Ease of Use
Having covered build and features, attention turns to how the Rhino 21-Gallon performs in real-world use.
The tank handles black-water transfer well: 21 gallons capacity, 40″ height aids gravity flow, low drain hole guarantees near-emptying.
Is it easy to operate? Yes — swivel fittings, 3′ hose, and clear elbow simplify connections and inspection.
Maneuvering is straightforward on many surfaces thanks to heavy-duty no-flat wheels and oversized handle.
Cleaning is practical: smooth interior, integrated rinser, and removable caps.
Considerations: plan for 34.5 lb empty weight, hose reach, and dump station height when positioning for discharge.
Transport, Storage, and Accessories
Several practical features make transport and storage of the Camco Rhino 21-Gallon straightforward for most RV users. It rolls on heavy-duty no‑flat wheels, has an oversized handle, and includes a steel tow adapter for towing behind trucks or golf carts.
How big is it? Dimensions: 20 1/8″ L × 12 1/2″ W × 40″ H; empty weight: 34.5 lb.
What accessories are included?
- 3′ sewer hose with swivel fittings
- 15″ female/female grey hose
- clear elbows, storage caps, lanyarded caps, tow adapter
Storage tips: ladder hook, tie-down straps, compressible 3′ hose for compact stowage.
Maintenance and Durability
Because routine care directly affects lifespan and performance, the Camco Rhino 21‑gallon tank is designed for straightforward maintenance and long-term use.
Because routine care extends lifespan and performance, the Camco Rhino 21‑gallon tank is built for easy maintenance and lasting use
The HDPE shell, smooth interior, and low drain hole make flushing and disinfecting efficient; the integrated rinser and 20 1/8″ length, 12 1/2″ width, 40″ height dimensions guide cleaning tool choice.
Wheels and tow adapter tolerate outdoor use; UV stabilization reduces sun degradation.
How often should it be cleaned? After every dump and before storage.
Practical storage uses ladder hook and tie-down straps to prevent deformation.
- Flush with potable water and mild cleaner
- Use the integrated rinser for interior reach
- Inspect seals and caps monthly
- Store compressed hose and secure tank vertically
- Replace fittings showing wear or cracking
Pros, Cons, and Value Assessment
Overview: The Camco Rhino 21‑gallon portable waste tank delivers a clear mix of strengths and trade-offs for RV users who need a mid‑capacity, durable transfer solution.
Pros: Durable UV‑stabilized HDPE, 20 1/8″ x 12 1/2″ x 40″, 34.5 lb, no‑flat wheels, tow adapter, integrated rinser. Cons: 21‑gal limits long boondocking runs, bulk when empty, 3′ hose may require extension. Value: Balanced for users who prioritize durability and maneuverability over maximum capacity.
| Feature | Benefit | Consideration |
|---|---|---|
| Capacity | 21 gallons | Limits extended stays |
| Weight | 34.5 lb | Manageable, still bulky |
| Wheels | No‑flat heavy duty | Handles uneven terrain |
| Hose | 3′ swivel | May need extension |
| Extras | Tow adapter, rinser | Adds cost/value tradeoff |
Frequently Asked Questions
Does It Come With a Warranty and What Does It Cover?
Yes; the manufacturer provides a limited warranty. It typically covers defects in materials and workmanship for a specified period, excluding normal wear, misuse, or damage from improper storage or towing. Proof of purchase is usually required.
Is the Tank Compatible With All RV Sewer Fittings and Standards?
Yes — it fits most standard RV sewer fittings, though not every oddball adapter. He notes included swivel fittings, universal 4‑in‑1 elbow and bayonet pieces, advising one verify nonstandard RV threads before relying completely.
Can It Be Used for Grey Water as Well as Black Water?
Yes. It can handle both grey and black water. The reviewer notes durable construction, included grey water hose, and easy draining and rinsing features make it suitable for either waste type, with proper cleaning between uses.
Are Replacement Parts (Wheels, Caps, Fittings) Available Separately?
Yes; parts like wheels, caps, and fittings are available separately. Like spare oars for a boat, they let users keep the system shipshape, sourced through Camco, authorized dealers, or RV parts suppliers for maintenance.
How Does Temperature Affect Storage and Waste Decomposition Inside the Tank?
Higher temperatures accelerate bacterial decomposition and odors, while freezing halts biological activity and can damage plastic or fittings; the tank’s UV‑stabilized HDPE resists sun exposure, but long hot or freezing storage still risks seals and hoses.
Conclusion
In short, the Camco Rhino 21-gallon RV portable waste tank delivers practical, no-nonsense performance: 21 gallons capacity, UV-stabilized HDPE, low-drain design, heavy-duty no-flat wheels, and an oversized handle. Is it flashy? No — and that’s the point. It tows via a steel adapter, rinses with an integrated rinser, and cleans easily thanks to a smooth interior. For campers who prioritize durability, ease of use, and measurable specs, it’s a reliably sensible choice.
