# Best RV Portable Waste Tanks Source: https://rvupgradehub.com/best/best-rv-portable-waste-tanks Updated: 2026-09-15 Publisher: RV Upgrade Hub. Our score is an editorial rating out of 10 (fit 35%, features 25%, build 20%, value 20%), not a customer rating. Method: https://rvupgradehub.com/how-we-research#our-score Capacity looks like the headline number and is actually a weight problem, because sewage weighs roughly 8.3 pounds per gallon. That makes a 15 gallon tote about 125 pounds when full, a 21 gallon tote about 175, and a 32 to 36 gallon tote more than 260 pounds of dead weight you are dragging by a handle across a gravel loop. Pick the size against your black tank and your own strength, not against the biggest number available: two trips with a 21 gallon tote is easier on everything than one trip with a 36. Wheels are the second thing that separates a usable tote from a chore. Pneumatic tires roll over gravel and grass but go flat in storage, while no-flat solid wheels never need air and transmit every bump, and four wheels track straighter than two when the tank is heavy. A built-in gate valve on the outlet is worth insisting on, since without one you are managing flow with the sewer hose alone. Check the fill and vent arrangement too: a proper vent lets the tank fill and drain fast, and a threaded sewer connection means your existing three inch hose and fittings work without adapters. Storage is the detail people forget, because a full-size tote takes real space, and a bumper mount holder gets it out of the pass-through. Storage compartments for hoses and gloves are a genuine convenience. ## Picks ### 1. Camco Rhino 36-Gallon RV Tote Tank with No-Flat Wheels & Built-in Gate Valve (39006) Our score: 8.6/10 (Fit for the job 9/10 · Features and specs 9/10 · Build and materials 8/10 · Value 8/10) Camco's Rhino 36-Gallon RV tote tank with no-flat wheels and built-in gate valve (39006). Pros: - 36-Gallon capacity is the largest option in this group - No-flat wheels roll over gravel without puncture worries - Built-in gate valve controls flow at the dump station Cons: - Very heavy when full, often needing a vehicle to tow - Takes more bay or truck bed space than smaller totes Details: https://rvupgradehub.com/product/B07K8NK525 ### 2. OSCULATI Tote-n-stor 32 Gallon Portable RV Waste Tank with Wheels, Storage Compartment & Accessories Our score: 8.4/10 (Fit for the job 9/10 · Features and specs 8/10 · Build and materials 8/10 · Value 8/10) OSCULATI's Tote-n-stor 32 Gallon portable RV waste tank with wheels, storage compartment and accessories. Pros: - 32 Gallon capacity handles black or gray water for longer stays - Storage compartment keeps hoses and fittings with the tank - Wheels make towing the tote to the dump station easier Cons: - Full 32 Gallon tank is very heavy and hard to lift - Large tote takes up a lot of storage space Details: https://rvupgradehub.com/product/B004OKV48O ### 3. Camco Rhino Tote Tank, 21 Gallon (E/F) & Rhino RV Bumper Mount Tote Tank Holder Our score: 8.0/10 (Fit for the job 8/10 · Features and specs 8/10 · Build and materials 8/10 · Value 8/10) Camco's Rhino 21 Gallon (E/F) tote tank bundled with a Rhino bumper mount tote tank holder. Pros: - Bumper mount holder carries the tote outside the RV - 21 Gallon size is easier to move than big totes - Bundle saves buying the holder separately Cons: - Smaller capacity means more frequent dump trips - Bumper must be sturdy enough to carry the loaded holder Details: https://rvupgradehub.com/product/B0BY8QN6D4 ### 4. Tote-N-Stor 25609 Portable Waste Transport - 32 Gallon Capacity, Gray Our score: 7.8/10 (Fit for the job 8/10 · Features and specs 7/10 · Build and materials 8/10 · Value 8/10) Tote-N-Stor's 25609 gray portable waste transport with 32 Gallon capacity for RV holding tanks. Pros: - Gray color hides stains and dirt better than lighter tanks - Tote-N-Stor is a long-standing name in portable waste tanks - 32 Gallon size reduces trips to the dump station Cons: - Check whether wheels and accessories are included - Bulky to store in smaller RV bays when the tote is not in use Details: https://rvupgradehub.com/product/B0085KGOH0 ### 5. Camco Rhino 28-Gallon Portable RV Tote Tank Our score: 7.8/10 (Fit for the job 8/10 · Features and specs 7/10 · Build and materials 8/10 · Value 8/10) Camco's Rhino 28-Gallon portable RV tote tank for hauling gray or black water to the dump station. Pros: - 28-Gallon size balances capacity and manageable weight - Rhino line is built with RV sanitation in mind - Tote tanks let you stay longer at sites without sewer hookups Cons: - Check whether wheels and valves are included - Hauling full tanks takes effort on rough campsite roads Details: https://rvupgradehub.com/product/B07K87FR5C ### 6. Camco Rhino 15-Gallon Portable RV Tote Tank with No-Flat Wheels (39000) Our score: 7.6/10 (Fit for the job 7/10 · Features and specs 8/10 · Build and materials 8/10 · Value 8/10) Camco's Rhino 15-Gallon portable RV tote tank with no-flat wheels (39000), a compact option for small rigs. Pros: - 15-Gallon size is manageable for one person to wheel - No-flat wheels handle rough campground paths - Compact size stores easily in small trailers Cons: - Small capacity needs frequent dumps on longer stays - Check whether a gate valve is included Details: https://rvupgradehub.com/product/B07DN8X8M6 As an Amazon Associate I earn from qualifying purchases.