How do you drain the windscreen water on a Vauxhall corsa?

To drain the windscreen water reservoir on a Vauxhall Corsa, locate the reservoir under the hood, typically near the back of the engine bay. Remove the cap and tilt the reservoir to pour out the fluid, or use a siphon pump for easier draining. Ensure to dispose of the fluid properly, following local regulations. After draining, you can refill it with the appropriate windscreen washer fluid.