Discover reliable gray water tanks and related accessories designed for campers and RVs. This guide highlights five top options that balance capacity, durability, and ease of use, helping you maintain clean, odor-free gray water systems on the road. Each product features practical design elements like seamless construction, built-in fittings, and compatibility with standard RV plumbing. Use the quick reference table below to compare core specs at a glance.
| Product | Brand | Capacity | Key Benefit |
|---|---|---|---|
| 30 Gallon RV Fresh/Gray Water Tank | A.A | 30 Gallons | Seamless construction; multiple fittings |
| Fresh Gray Water Holding Tank Combo | A.A | 16 & 21 Gallons | Two sizes; one-piece design |
| Camco TST Grey Water Odor Control | Camco | N/A | Odor control and grease removal |
| Under-Mount 20 Gallon Tank | Class A Customs | 20 Gallons | Under-mount design; dual fittings |
| RV Fresh/Gray Water 30 Gallon Tank | classAcustoms | 30 Gallons | NSF-approved materials; dual fittings |
30 Gallon RV Fresh/Gray Water Tank
The 30 Gallon RV Fresh/Gray Water Tank from A.A is designed for compact RV and camper configurations. The tank measures 34″ x 18″ x 12″ (fittings not included) and comes with a 1.25″ water fill inlet plus three 3/8″ NPT connections. It is a non-pressurized, seamless one-piece construction, which helps prevent leaks and burst damage in rough road conditions. The venting requirement is noted, emphasizing proper system operation and safety. This tank is suitable for both fresh and gray water storage when combined with appropriate fittings.
Fresh Gray Water Holding Tank Combo
A.A’s Fresh Gray Water Holding Tank Combo includes 16-gallon and 21-gallon options, both rotational molded from durable polyethylene. Each tank features a seamless, one-piece construction to minimize seam-related failures. The 24″ x 15″ x 10″ (16 gal) and 39″ x 16″ x 8″ (21 gal) dimensions offer flexible placement within compact RVs and campers, enabling efficient use of under-cabinet or floor space while maintaining strong resistance to leaks.
Camco TST Grey Water Odor Control
Camco’s TST Grey Water Odor Control treats your RV’s gray water system by removing tough grease buildup in tanks, sinks, and shower drains, promoting smoother water flow and reducing clog risks. As a deodorizing solution, it neutralizes odors to keep the RV interior inviting. The product is septic-tank safe, formaldehyde-free, and non-staining, aligning with environmentally conscious operation while maintaining performance in gray water lines.
Under-Mount 20 Gallon Tank
This Class A Customs under-mount 20-gallon tank is built for flexible RV installation. Made from NSF-approved materials, it is safe for fresh or gray water storage. The tank measures 48″ long (excluding fittings) by 8.5″ tall and 13″ wide, and is designed to sit on either side, allowing you to rotate the orientation as needed. It includes two 1.5″ female NPT fittings and two 0.5″ female NPT fittings, with guidance to avoid over-tightening to protect the fittings.
RV Fresh and Gray Water 30 Gallon Tank
Class A Customs’ 30 Gallon tank is designed for both fresh and gray water storage. It uses NSF-approved materials and features built-in fittings, including two 1.5″ balloon-style threaded female NPT standards and two 0.5″ threaded female NPT standards. The tank measures 34.5″ long by 12″ by 17.5″ and allows rotation to accommodate space constraints. The design emphasizes watertight sealing and ease of use with compatible fittings to minimize installation challenges.
Buying Guide: Key Purchase Considerations
- Capacity needs: Choose tank size based on your typical travel schedule, water usage, and available space in your RV or camper. Larger capacities reduce frequency of emptying, but require more mounting space.
- Material and safety: Look for NSF-approved or BPA-free polyethylene tanks for safe contact with water and long-lasting performance. Seamless, one-piece construction helps prevent leaks.
- Fittings and compatibility: Ensure the tank includes or supports standard NPT fittings and water inlets that match your plumbing. Consider extra fittings or adapters to simplify installation.
- Installation options: Under-mount vs. floor- or cabinet-mounted tanks offer different space usages. Check dimensions carefully to fit under your preferred mounting area and allow for venting requirements.
- Odor management: For gray water systems, consider odor-control products or tank treatments to minimize smells, especially in tight camping environments.
- Maintenance and cleaning: Seams-free designs and smooth interiors facilitate easier cleaning and reduce the risk of residue buildup.
- Ventilation and venting: Non-pressurized tanks often require proper venting. Verify that your system is vented according to manufacturer guidance to prevent pressure buildup.
- Mobility and weight: Heavier tanks may impact vehicle payload and handling. Consider weight when choosing a tank, especially if you frequently travel with full tanks.
When selecting a gray water tank, balance capacity, space, and installation complexity against your vehicle’s layout and travel habits. For odor control and maintenance, pairing a robust tank with compatible treatment products can help sustain a comfortable and functional RV environment. Always follow the manufacturer’s installation instructions to ensure a safe and leak-free setup on your next trip.