
Using rainwater to operate a toilet
Is it possible to use rainwater for the toilet? We explain everything you need to know about using rainwater in the bathroom.
Content
At a glance
Instead of using drinking water, you can use rainwater to flush your toilet.
Flushing toilets with rainwater is a sustainable, eco-friendly solution.
TwistFlush is an excellent alternative for a water-saving toilet.
A sustainable solution for your toilet
Water is a precious and vital commodity. However, in our households, the largest proportion of drinking water is used to flush the toilet and use the washing machine. Using rainwater for your toilet could save a huge volume of drinking water each year. As the toilet flush is not used as a source of drinking water, this is a practical and sustainable alternative.

Are you allowed to use rainwater for your toilet?
In general, there is no law stating that rainwater can’t be used to flush the toilet or wash clothes. However, you could incur wastewater charges and the water may need to be purified. Before using rainwater, seek specialist advice and check with the manufacturers of your household appliances to ensure they are suitable for this. Additional installations may be required. Hygiene concerns should also be clarified in advance.
Rainwater flushing: benefits and drawbacks
Using the mains water supply to flush your toilet can have advantages. We give details on the potential drawbacks of using rainwater for your toilet.

Disadvantages of using rainwater
Rainwater for toilets: disadvantages and challenges

Water-saving flushing alternative
TwistFlush: water-saving toilet from Villeroy & Boch
Are you looking for alternative ways to save water when flushing the toilet? We recommend TwistFlush from Villeroy & Boch. This flushing technology uses an exceptionally low volume of water and is extremely efficient. Its very powerful action flushes almost the entire inner surface of the toilet, so deposits don't stand a chance.