Caravan, Camper Van & Motorhome Waste Water Carriers

Waste water carriers are essential accessories for managing grey water from your caravan, motorhome or camper van when you're off-grid or at sites without direct drainage. These portable containers collect water from sinks, showers and washing up, letting you dispose of it properly at designated waste points. Popular models include the Wastemaster with its 38-litre capacity and convenient toilet cassette storage area, Fiamma roll tanks from 23 to 40 litres with level indicators, and traditional black containers that slide under your vehicle's waste outlet.

The main benefit of having a dedicated waste carrier is keeping your pitch clean and meeting site regulations - nobody wants grey water pooling around their caravan. Most caravanners and motorhomers use these when staying at basic sites, wild camping, or anywhere without direct waste connections. Capacities range from compact 23-litre units perfect for weekends, up to large 46-litre Wastehog containers for extended trips. Key features to consider include whether you need wheels for easy transport, a side cap for sliding under low-profile waste outlets, and ergonomic handles for comfortable carrying when full.

Compatible with standard 28.5mm convoluted waste hose found on most UK caravans and motorhomes from manufacturers like Swift, Bailey, and Autosleeper. The carriers work with both fixed and flexible waste outlets, though you'll need to check ground clearance if your vehicle sits low. One consideration is that larger capacity containers become quite heavy when full - a 40-litre tank weighs around 40kg plus the container weight, so factor in your lifting ability and campsite terrain when choosing size.

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Frequently Asked Questions

What capacity waste water carrier do I need for my caravan or motorhome?
For weekend trips, a 23-25 litre capacity is usually sufficient for 2 people. For longer stays or larger groups, consider 38-46 litre containers like the Wastemaster or Wastehog. The average person produces around 8-10 litres of grey water per day from washing and cooking, so calculate based on your typical usage and trip length.
Will a waste water carrier fit under my motorhome's waste outlet?
Most carriers are designed to fit under standard UK motorhome and caravan waste outlets, but ground clearance varies. Traditional black containers are typically 200mm deep when lying on their side, while larger Wastemaster units are around 300mm high. Measure your outlet height and choose accordingly - containers with side caps can slide under lower profiles more easily.
Are waste water carriers compatible with all UK caravan and motorhome waste systems?
Yes, waste carriers work with the standard 28.5mm convoluted waste hose used by major UK manufacturers including Swift, Bailey, Autosleeper, Autotrail, and Bentley. They're designed to collect grey water from both fixed waste outlets and flexible drain hoses with taps. The connection is gravity-fed, so no special fittings are required.
How often should I empty my waste water carrier?
Empty your waste carrier before it reaches full capacity to avoid spills and make handling easier. Most users empty daily or when around 80% full. In warmer weather, empty more frequently as grey water can develop odours. Always empty at designated waste points or chemical disposal areas - never into drains, streams, or ground areas where it could cause environmental damage.
Do I need wheels on my waste water carrier?
Wheels make transporting full containers much easier, especially larger capacities over 30 litres. The Wastemaster and Wastehog models include wheels and are popular for this reason. Consider your campsite terrain and distance to waste points - wheels are essential for longer walks or uneven ground, but smaller containers without wheels are adequate for short distances on flat surfaces.
What's the difference between roll tanks and rigid waste containers?
Fiamma roll tanks are collapsible with flexible sides that expand when filled, making them compact for storage when empty. They typically include level indicators and air release valves. Rigid containers like the Wastemaster maintain their shape and often include additional features like toilet cassette storage areas on top. Roll tanks are better for space-saving storage, while rigid containers offer more durability and additional functionality.