Description
Valterra Silverback 28-Gallon Tote Tank – Gray & Black Water Waste Transport
Skip breaking camp for every dump run with the Valterra Silverback 28-Gallon Portable Waste Holding Tank. Hitting the sweet spot between capacity and maneuverability, this heavy-duty, blow-molded tote tank gives RV owners more hauling room than a compact tank without the bulk and weight of a full-size unit. Nicknamed the "Silent Protector," it's engineered around leak-proof integrity, using an integrated Valterra gate valve and proprietary quick-coupler system to eliminate the common nightmare scenarios of portable waste management — leaks, overfilling, and unmanageable hauling.
Built by Valterra — the same manufacturer trusted for OEM gate valves and sewer hoses on millions of RVs — the Silverback 28 ships as a complete, ready-to-use waste transport system, letting you dump both gray and black water at the nearest station without moving your entire RV.
Used For: Gray and black water waste transport
Specifications:
- Capacity: 28 gallons
- Wheels: 2 airless rubber tires with reinforced fiberglass wheels — never go flat, no air pressure to check
- Construction: Heavy-duty, blow-molded body with integrated Valterra gate valve
- Includes: 28-gallon tote tank, 3' sewer hose, 3" 360° rotating bayonet adapter, Silverback quick coupler, and two termination caps
- Warranty: 3-year limited warranty
Key Features:
- Integrated Valterra gate valve — built by the same manufacturer whose valves are OEM standard on millions of RVs
- Proprietary quick-coupler system — designed for leak-proof, reliable connections every time
- Exclusive Tow-N-Pull handle — fits all standard hitch sizes for effortless transport from campsite to dump station
- ClearView fill window — see your fill level at a glance without opening the cap
- 360° jet-spray cleanout port — connects to any standard garden hose to power-rinse every corner of the tank interior
- Full-rotation directional vent — aim odors away from you in any wind condition while speeding up fill and drain times
- Airless rubber tires — roll confidently over gravel and dirt with zero risk of flats or blowouts
- Complete, ready-to-use kit — no additional parts needed to get started
Frequently Asked Questions
Can this tank hold both gray and black water?
Yes — the Silverback 28-Gallon is designed to safely transport both gray and black water waste.
Is 28 gallons the right size for my RV?
The 28-gallon size is the sweet-spot option in the Silverback lineup — more capacity than the compact 15 or 21-gallon models, without the bulk of the full-size 36-gallon tank built for full-timers. It's a strong fit for RVers who want fewer dump-station trips without sacrificing maneuverability.
Does this come with everything I need, or do I need to buy extra parts?
It ships as a complete kit: the 28-gallon tank, 3' sewer hose, 3" rotating bayonet adapter, Silverback quick coupler, and two termination caps — ready to use right out of the box.
Do the wheels ever go flat?
No — the Silverback uses airless rubber tires with reinforced fiberglass wheels, so there's no air pressure to maintain and no risk of flats, even on hot pavement or rough terrain.
How do I clean the tank after dumping?
The 360° jet-spray cleanout port connects to any standard garden hose, driving high-powered water jets into every corner of the tank for a thorough rinse.
How do I know when the tank is full without opening it?
The ClearView fill window lets you visually check your fill level at any time — no guessing, no unreliable float bobbers.
Can I control odors while filling or dumping?
Yes — the full-rotation directional vent lets you aim foul air away from you in any wind condition, while also speeding up both fill and empty times.
Is this tank heavy to pull when full?
At 28 gallons, this is a moderate-capacity tank — heavier than the 15/21-gallon models but more manageable than the 36-gallon flagship. The Tow-N-Pull handle is designed for comfortable pulling even at higher fill levels.
You May Also Need
- Valterra Silverback Replacement Sewer Hose
- Valterra Silverback Quick Coupler (replacement)
- Ratchet straps for secure towing/storage
