The Rainwater Refund Calculator

Privacy policy

Last updated: 11 September 2026

What do we process?

We process the details you provide in the calculator and contact form: name, email, phone (optional), address, calculation result and your answers to the questions about sewerage, soil type, etc.

For what purpose?

The details are used to calculate your potential, assess your enquiry and arrange contact with a partner drain-layer who can give you a no-obligation quote.

Who do we share with?

We only share your details with a partner drain-layer in your area, and only if you have given consent. We never sell your details.

Storage and deletion

The details are stored as long as they are needed to handle your request, but no longer than 12 months. You can at any time request access, correction or deletion of your details.

Your rights

Contact us by email to exercise your rights under GDPR: access, correction, deletion, restriction, objection and data portability. You can also complain to the Danish Data Protection Agency.