When shopping for fresh water tanks for RVs, the main goal is reliability, food-safe materials, and easy installation. This guide highlights options suited for different RV lifestyles—from long road trips to weekend getaways—so you can choose the right tank for your needs. The top picks below are grouped by capacity and use, helping you match the best tank to your water usage, space, and maintenance preferences. Suitable buyers include full-time RV dwellers, weekend campers, and small mobile businesses that rely on clean drinking water on the road.
Summary of selected products:
| Product | Capacity | Best For | Notes |
|---|---|---|---|
| RecPro RV Fresh Water Tank (100 Gallon) | 100 gal | Extended trips, high water usage | Made in USA; durable polyethylene |
| Ameri-Kart 57 Gallon RV Tank | 57 gal | Moderate to high usage, flexible installation | USA-made; multiple fittings |
| Ameri-Kart 29 Gallon RV Tank | 29 gal | Compact rigs, easy fit | USA-made; reliable for smaller RVs |
| STAR BRITE Aqua Tank Flush | 1 gal bottle | New storage seasons, odor removal | Tank system cleaner; boats and RVs |
| Camco TastePURE Water Freshener | 16 oz bottle | Odor and taste control | Easy dosing; treats up to 320 gallons |
RecPro 100 Gallon Fresh Water Tank
Best for long trips, this 100-gallon tank provides a sizeable reservoir for sustained drinking water during extended travels. The polyethylene construction offers durability for frequent road use, and the design is tailored for RV and trailer installations. Choose this if your RV hosts longer excursions or if you want fewer refill stops between destinations.
Key points: 100-gallon capacity; specifically designed for RV use; USA-made. Caution: Larger tanks can require more space and heavier handling during installation.
Ameri-Kart 36 Gallon RV Fresh Water Tank
Best for mid-sized RVs and campers, this 36-gallon tank is made in the USA from BPA-free materials and designed for potable water. It features multiple installation options with built-in fittings, making it a flexible choice for various towing setups. Ideal for couples or small families who want a reliable water supply without overloading their vehicle.
Best-for notes: Good balance of capacity and installation flexibility. Caution: Check compatibility with your RV’s plumbing fittings, as the kit includes specific NPT options.
Ameri-Kart 29 Gallon RV Fresh Water Tank
Best for compact RVs and trailers, this 29-gallon model provides essential potable water storage with BPA-free materials. The tank supports multiple installation options and includes standard fittings for straightforward hookups. Choose this if space is at a premium but you still need dependable drinking water on the go.
Limitation: Smaller capacity means more frequent refills on longer trips; ensure your water needs align with travel plans.
Ameri-Kart 57 Gallon RV Fresh Water Tank
Best for households needing more water without stepping up to 100 gallons, this 57-gallon tank is made in the USA and designed for rugged RV use. With built-in 1.5″ and 0.5″ fittings, it supports versatile installation options. Choose this when you want a larger reservoir but don’t require the largest size available.
Note: Ensure the tank’s dimensions fit your storage space, as larger tanks require more cabinet or cargo area.
STAR BRITE Aqua Water Tank & System Flush
Best for seasonal RV storage and new season prep, this 1-gallon system flush helps deep-clean and deodorize fresh water tanks and the entire drinking system. It’s particularly useful after long storage periods when odors or tastes may develop. Use this to restore water quality before returning to regular use.
Limitation: It is a cleaning product, not a storage tank, and should be used as part of routine maintenance rather than ongoing treatment.
Camco TastePURE Drinking Water Freshener
Best for ongoing taste and odor control, this 16-ounce bottle treats up to 320 gallons of water. It prevents algae and slime buildup in the RV drinking water tank, ensuring crisper-tasting water on subsequent fills. Use regularly for a maintenance approach to water quality.
Limitation: It’s a treatment rather than a tank itself; always follow dosing instructions to avoid overuse.
Class A Customs Under Mount 30 Gallon Tank
Best for small-to-mid-sized installations where a single under-mount solution is preferred, this 30-gallon tank supports both fresh and gray water with NSF-approved materials for safety. Installability is supported by standard fittings and dimensions designed for compact RV compartments. Choose this if you want a versatile, space-efficient tank with reliable water storage.
Limitation: Slightly smaller than some high-capacity options; plan for your typical daily water needs to avoid frequent swaps or refills.
RecPro Fresh and Gray Water Holding Tank Combo
Best for dual-tank setups, this combo includes a 30-gallon fresh water tank and a 42-gallon gray water tank. It’s American-made and ready for standard RV plumbing with pre-fitted inlet and outlet configurations. This option suits families or off-grid setups that need separate storage for fresh water and gray water, simplifying management and disposal.
Limitation: The two-tank configuration may require more space and careful routing in tight compartments.
Buying Guide: Key Purchase Considerations
What capacity do I need? Consider your typical trip length, water usage per day, and space in your RV. Larger tanks reduce refills but require more space and heavier handling.
What materials matter? BPA-free plastics are common and safe for potable water. Durable polyethylene and NSF-approved materials improve longevity in mobile environments.
What fittings are included? Look for standard NPT fittings and compatible inlet/outlet placements to ease installation. Tanks with multiple fitting options offer flexibility for various layouts.
Can I install under-mount or behind cabinets? Check dimensions, mounting options, and whether your RV design supports under-mount, cube-shaped, or long-tank configurations.
Maintenance considerations include cleaning products and routine flushing. Tanks labeled for potable water and products designed to deodorize or remove scale can extend water quality between fillings.
FAQ
- What capacity should I choose for weekend trips? A 29-36 gallon tank is often sufficient for 2-4 days of use, depending on consumption and whether you have a water-sharing setup.
- Are American-made tanks worth it? USA-made tanks often emphasize durability and consistent manufacturing standards, which can be advantageous for frequent travel.
- How do I know if a tank fits my RV? Check mounting dimensions, inlet/outlet fittings, and the available space in your storage area or under-mount location before purchasing.
- Should I buy a two-tank system? A dual system (fresh and gray) simplifies wastewater management and can be beneficial for larger rigs or commercial setups like food trucks.
- What about water treatment products? Use taste and odor control products as part of routine maintenance, following dosing guidelines to preserve water safety and taste.
- Is a larger tank always better? Not necessarily; consider space, vehicle weight limits, and your typical camping style to balance capacity with practicality.