Article Type: Product Recommendation
Author: RV Pro Solutions (Certified NRVIA Inspector Insight)
Applies To: RV black- and gray-water dumping systems using a standard 3-inch waste outlet and compatible sewer inlets
Overview
The Camco RhinoFLEX 15-Foot RV Sewer Hose Kit (39770) is designed to connect an RV’s standard 3-inch waste outlet to a compatible campground or dump-station inlet. The kit includes a 15-foot collapsible hose with pre-attached swivel fittings, a clear elbow, a removable 4-in-1 adapter, and storage caps.
Its collapsible construction and included fittings simplify routine dumping, but every sewer-hose setup still depends on sound gaskets, fully locked connections, adequate slope, and careful sanitation. Inspect the hose before use and keep it separate from potable-water equipment.
Camco RhinoFLEX RV Sewer Hose Kit
Check current price and availability.
Key Features
- 15-foot collapsible RhinoFLEX sewer hose designed for compact storage.
- Pre-attached swivel bayonet and lug fittings for connection and alignment.
- Clear elbow provides visual confirmation as tank flow slows and rinse water clears.
- Removable 4-in-1 adapter is designed for several common dump-station inlet configurations.
- Storage caps cover both ends after the hose has been rinsed and drained.
RV Use Cases
- Routine black- and gray-tank dumping at campgrounds and public dump stations.
- Full-hookup campsites where the sewer connection is within the hose’s working reach.
- Owners who want a complete hose, elbow, adapter, and cap set in one package.
- RV waste systems using the standard bayonet-style outlet connection.
Practical Advantages and Limitations
Advantages:
- Included fittings reduce the number of separate sewer components needed for a basic setup.
- The clear elbow helps the owner monitor drainage and rinsing without opening a connection.
- The hose collapses for storage and extends when additional reach is needed.
Considerations:
- A 15-foot hose may not reach every campsite connection; measure before opening tank valves.
- The elbow and adapter require more storage space than the collapsed hose alone.
- Cold temperatures can reduce hose flexibility, and dragging can damage the hose wall.
- Seals, bayonet tabs, fittings, and the hose body still require inspection for wear or leakage.
Best Practices
- Dry-fit the route first: Confirm that the hose reaches the inlet with enough slope and without sharp bends.
- Lock every connection: Seat the bayonet fitting fully and verify the elbow or adapter before opening a valve.
- Support the hose: Use an appropriate sewer-hose support where needed to maintain drainage and keep the hose off abrasive surfaces.
- Dump in the correct order: Follow the RV manufacturer’s procedure and normally drain the black tank before using gray water to help rinse the hose.
- Rinse and cap: Use a dedicated non-potable hose where permitted, then drain the sewer hose and cap both ends.
- Store separately: Keep sewer equipment away from freshwater hoses, filters, fittings, and drinking-water storage.
Inspector’s Note (RV Pro Solutions Insight)
Let's face it, dealing with the black tank isn't anybody's favorite part of RV ownership, but having a good-quality sewer hose system can make the job a whole lot easier and a lot less messy. One thing I always recommend is choosing a reliable system with secure, easy-to-use connections. The last thing you want is a hose coming loose while you're emptying your waste tanks!
I also prefer using a well-known brand with replacement parts that are easy to find. That way, if you ever need a new fitting, seal, or section of hose while traveling, you're not stuck trying to track down something that isn't readily available.
With proper care and storage, a quality sewer hose can provide years of reliable service. My advice is to take a few extra seconds to check the hose and connections before opening any waste valves. Once you're finished, rinse the hose thoroughly, allow it to drain, and secure the end caps before putting it away. And one thing I can't stress enough: always keep your sewer equipment separate from your freshwater hoses and accessories to help prevent cross-contamination.
It's one of those RV accessories where spending a little more for quality and taking the time to use it properly can save you from a pretty unpleasant experience down the road.
If you're new to RVing or just want a refresher on the proper procedure, I've put together a step-by-step guide that walks you through the process: How to Drain Your RV Waste Tanks: A Step-by-Step Process
Check current price and availability.
