Twin Caravan Waste Water Outlet Kit Review: The Solution to Grey Water Chaos
- Caravan Coach
- Oct 2, 2025
- 5 min read
Product Details
Product Category: Water & Waste Management
Brand: BITS4REASONS
Prices Usually Range From: £10-£45 (depending on whether drainage hose is included and hose length)
Best For: Caravanners with dual waste outlets who want a reliable, adjustable drainage solution for both waste containers and serviced pitches
Where to Buy: Available at Amazon UK or major caravan accessory retailers.
Caravan Waste Water Outlet Kit -Introduction
If you've ever wrestled with two separate waste pipes dangling beneath your caravan, or found yourself getting splashed while yanking them out of your Wastemaster, you'll understand why a proper twin outlet system matters. The BITS4REASONS Twin Caravan Waste Water Outlet Kit transforms what's typically a messy setup into something genuinely practical.
I've tested various waste pipe configurations over the years, and this system caught my attention for its combination of British Standard certification and proper home plumbing grade fittings—not the flimsy alternatives you sometimes see at caravan shows. After using it across different site conditions, from fully serviced pitches to basic stopover locations, it's earned its place in my setup.
Key Features
The system centres around a Y-connector that combines your caravan's two waste outlets into a single drain point. The core unit uses FLOPLAST home plumbing grade fittings, which immediately sets it apart from cheaper alternatives. These aren't lightweight camping accessories—they're proper plumbing components tested to EN 1451 standards and complying with BS5254.
The kit includes two flexible grey convoluted pipes that attach directly to your caravan's outlets. These measure 28.5mm internal diameter (34mm external), fitting most caravans manufactured after 2000. The central white connector extends by about 1.5cm, providing adjustment when your outlet spacing isn't perfectly standard.
BITS4REASONS offers this system in several configurations. The basic adaptor kit includes just the Y-connector and flexible outlet pipes—ideal for draining directly into your waste carrier.. For serviced pitch use, the complete systems include drainage hose in various lengths: 6m, 10m, or 12m options to reach pitch drain points.
For the 6m version I tested, the hose provides enough length to reach most serviced pitch drains without needing extensions. The hose connects to standard 34mm rigid pipe and runs directly down into the pitch drain point.
Everything twists flat for storage—important when you're managing limited locker space. If you primarily use waste carriers, the basic adaptor-only version is all you need. If you frequently stay on serviced pitches, the versions with drainage hose eliminates the need to source compatible piping separately.
Pros and Cons
Pros:
Robust FLOPLAST home plumbing grade fittings
Multiple configuration options to suit different needs and budgets
Adjustable design accommodates different outlet spacing on various caravan models
Available with 6m, 10m, or 12m hose lengths for different serviced pitch requirements
Twists flat for compact storage in limited locker space
British Standard certified (BS5254) and tested to EN 1451
Significantly tidier than running two separate waste pipes
Easy to disassemble for thorough cleaning
Works with waste containers (adaptor only) or serviced pitch drainage (versions with hose)
Cons:
Requires checking your caravan's outlet diameter before purchase (28.5mm ID required)
Grey convoluted hose isn't as compact as some collapsible alternatives when travelling
Need to purchase correct version for your usage—adaptor only for waste carriers, hose version for serviced pitches
Performance
Setup takes about ten minutes the first time, less once you've worked out your caravan's specific requirements. The connection points push together firmly—I found adding a piece of Sellotape around the corrugated pipe ends provides a water tight seal, while aiding assembly.
Once fitted to your caravan outlets, the system stays securely in place. I've had issues with simpler setups where the weight of a waste container gradually pulls connections loose, but the BITS4REASONS kit holds firm. The rigid white connector provides enough structure to prevent sagging, while the flexible sections absorb movement without disconnecting.
For waste carrier use with the basic adaptor kit, the rigid downpipe section drops neatly into a Wastemaster or similar container, and the setup looks tidy rather than a jumble of pipes. When you're emptying the container, the whole assembly lifts away cleanly without dripping everywhere—a notable improvement over loose pipe arrangements.
On serviced pitches with the 6m hose version, the reach is comfortable for most drain point locations. I've used it on pitches where the drain was awkwardly positioned behind the caravan, and the length made routing straightforward. If you frequently encounter pitches with distant or awkwardly positioned drains, the 10m or 12m options provide extra flexibility.
Specifications
Outlet Compatibility: 28.5mm internal diameter / 34mm external diameter
Configuration Options: Adaptor only (for waste carrier use or if you have existing hose), or Complete systems with 6m, 10m, or 12m drainage hose (for serviced pitch drainage)
Connector Material: FLOPLAST home plumbing grade plastic
Standards Compliance: BS5254, EN 1451 tested
Suitable For: Most caravans manufactured after 2000 with dual 28.5mm outlets
Storage: Twists flat for compact storage
Colour: Grey hose with white fittings
Why It's Recommended
This system solves a genuine problem that affects most modern caravanners. Twin waste outlets are standard on contemporary caravans, but managing two separate drainage points creates unnecessary hassle. The BITS4REASONS kit consolidates everything into a single, manageable system.
What distinguishes this product from cheaper alternatives is the quality of components. Home plumbing grade fittings mean you're getting proper seals and robust connections rather than camping-specific parts that might crack after a few seasons. The British Standard certification provides confidence that the system meets proper drainage requirements.
The flexibility to choose your configuration is sensible. If you're primarily using waste containers, the basic adaptor kit offers excellent value—it combines your twin outlets into a single downpipe that drops neatly into your carrier. For those who regularly use serviced pitches, the versions with drainage hose eliminate the need for separate piping. The 6m version handles most situations, while the 10m and 12m options suit caravanners who frequently encounter awkward pitch layouts or prefer the certainty of extra reach.
The adjustability matters more than you'd initially think. Pitch layouts vary enormously—sometimes the drain point is directly beneath your caravan, other times it's several metres away at an awkward angle. Having adequate hose length and adjustable elbows means you can adapt to whatever configuration you encounter without needing a collection of adaptors.
For beginners, this system removes one of the potentially messy aspects of caravanning. You don't need to understand complex plumbing configurations or worry about achieving leak-free connections with multiple components. Everything connects together logically, and once it's set up, it simply works. Choose the adaptor-only version if you use waste carriers, or pick the hose length that suits your typical serviced pitch requirements.
Experienced caravanners appreciate the robustness. After years of using various waste pipe arrangements, having a system that doesn't require constant fiddling or leak-checking is genuinely valuable. It's the kind of equipment that fades into the background—which is exactly what you want from essential infrastructure.
Rating
Overall Score: 4.5/5
Score Breakdown
Design: 4.5/5
Durability: 5/5
Ease of Use: 4.5/5
Value for Money: 4.5/5
Disclaimer
This review reflects my genuine opinions and experiences. Some of the links in this article are affiliate links, including Amazon Associate links. As an Amazon Associate, I earn from qualifying purchases. This means I may receive a small commission if you buy through these links, at no extra cost to you.
Product details, availability, and prices were accurate at the time of writing but may change without notice. Please check with the retailer for the latest information before making a purchase. Caravan Coach cannot be held responsible for differences between this review and the actual product or service you receive.
