Best Trailer Mounted Water Tanks for Camping and RV Trips

Find the right trailer mounted water tank for reliable on-the-road water storage. This guide highlights five options suited for camping, RV trips, and off-grid travel, with clear reasons for each pick and practical limitations to consider.

WaterPrepared 35 Gallon Portable Utility Water Tank

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Best for season-long camping trips or travel that requires a portable, self-contained water supply. The 35-gallon capacity balances weight and usable volume for extended stays without frequent refills. The spigot and handles facilitate quick dispensing and easy handling during setup and breakdown. This tank is well-suited for campers who want a lightweight option that can be strapped to an ATV or trailer, with simple setup for multiple water use points.

Who this is for: campers who value portability with a generous water reserve, and travelers needing a practical, all-around water solution. Why selected: its combination of capacity, portability, and access points makes it a versatile choice for mobile setups. Caution: ensure safe mounting and strap points are used to prevent movement during transit.

Camco Rhino 36-Gallon RV Tote Tank (39006)

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Best for full-time RV owners needing a large-capacity tote with rugged wheels and a built-in gate valve. The 36-gallon tank provides ample supply for longer trips, and the heavy-duty no-flat wheels enhance transport across uneven surfaces. The included tow adapter and sewer hose support a smoother RV connection and drainage workflow.

Who this is for: RVers who prioritize capacity and durability in a tote with user-friendly drainage and towing features. Why selected: integrated gate valve and robust wheels improve reliability on road and campsite setups. Caution: larger size may require more storage space and careful hitch alignment during towing.

Camco Rhino 28-Gallon Camper Tote Tank (39004)

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Best for mid-size RVs needing a practical balance of capacity and mobility. The 28-gallon tote offers substantial storage while remaining easier to maneuver on varied terrain. It features a built-in gate valve and tow compatibility for simple integration with existing RV setups.

Who this is for: travelers who want a reliable tote with straightforward operation and manageable weight. Why selected: it provides essential RV tote features without the bulk of larger tanks. Caution: ensure the fill and discharge openings are compatible with your current hoses and fittings.

RomoTech 26 Gallon Square Poly Tank (82123899)

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Best for secure mobile transport with clear level indicators. The square design helps maximize space on trailers or inside compartments, with molded level marks to assist accurate filling. Large fill opening enables easier inspection and cleaning.

Who this is for: buyers who value space efficiency and clear fill-level visibility. Why selected: the molded level marks and tie-down channels support safer transport. Caution: ensure the square shape fits your mounting area and aligns with tie-down points on your trailer or vehicle.

Camco Rhino 21-Gallon RV Portable Tote Tank (39002)

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Best for compact setups or secondary water storage on the trailer. The 21-gallon capacity suits short trips or supplemental water during travel. It includes large wheels and a removable steel tow adapter for straightforward movement and hookup.

Who this is for: users needing a smaller, portable option with reliable mobility. Why selected: its lighter weight and ease of handling make it ideal as a secondary water source. Caution: capacity is limited; plan refills accordingly to avoid shortages on longer itineraries.

Buying Guide

Key purchase considerations for trailer mounted water tanks include capacity, mobility, and connection compatibility. Choose based on trip length, vehicle space, and the need for towing compatibility or ATV mounting.

• Capacity vs. space: Larger tanks offer more water but require more storage and heavier handling. Match capacity to typical trip length and water usage.
• Mobility features: Look for wheels, tow adapters, and tie-down channels. No-flat wheels improve reliability on rough campsites.
• Drainage and connections: Built-in gate valves and standard hose fittings simplify transfer and drainage. Ensure the valve type and hose sizes match your setup.
• Material and durability: Poly tanks resist corrosion and are lighter; check UV resistance for exposed installations and the ease of cleaning the interior.
• Mounting and space fit: Assess trailer dimensions, hitch clearance, and whether the tank sits high or low. Square shapes may maximize storage but need proper clearance.

Frequently Asked Questions

1. Q: What size trailer mounted water tank should I choose for a week-long trip? A: For a week, 28–36 gallons is a common balance of capacity and weight, depending on your water usage and available storage.
2. Q: Are these tanks easy to clean on the road? A: Yes, most have a large fill opening and accessible interiors, but plan for regular cleaning with appropriate tools and safety precautions.
3. Q: Do all tanks include a spigot? A: Many models feature a dispensing spigot for easy access, but verify the included fittings in the product details.
4. Q: Can I tow a tote tank behind any RV? A: Towing compatibility depends on the tank’s weight, hitch type, and your vehicle’s capacity. Check the tow adapter and mounting requirements.
5. Q: Is a metal or plastic tank better for outdoor use? A: Plastic (poly) tanks are lighter and resistant to corrosion; metal tanks are typically heavier and may require more maintenance.
6. Q: How do I know if a tank fits my trailer space? A: Measure the available length, width, and height, then compare with the tank’s dimensions and mounting needs.