Water Management
How the water systems in your campervan or motorhome work, from fresh water to grey water, with tips for making sure you always have enough.
Fresh water
Fresh water tanks
The freshwater tank supplies the sink and bathroom. We recommend filling it every 1 to 2 days, using the hose provided with the vehicle.
If the water pump isn't working, check that the pump switch is on. Turn off the water pump when you're not using water to prevent water build-up.
Make sure the sink plug is in while driving.
Hot water
For hot water, turn on the water heater. Heating time depends on the heater. Some gas heaters take around 20–25 minutes, so check your vehicle's instructions for how long it takes and how it's powered.
Waste water - grey water and black water
Water from the sink and shower (grey water) and the toilet cassette (black water) needs emptying at an authorised dump point. Most holiday parks have dump points for their guests. Our waste management guide explains how often and how to empty them, for vans with and without a waste water tank.
Next steps
- Waste management: emptying grey water and the toilet cassette
- Using campervan features: the toilet, fridge, awning and gas bottle
- Utility failures: what to do if the water pump or tanks fail
Part of During Your Trip in the Campervan Hire Handbook.