Disclaimer

Information and planning

WaterCalcLab content and calculations provide general information and preliminary estimates. They are not binding technical, legal or financial advice.

Limits of results

Rainwater yield, irrigation demand, storage sizing, pump performance and savings are model-based estimates. Weather, location, use, losses, maintenance and prices may substantially change actual outcomes. No particular performance, saving or financial return is guaranteed.

Water quality and safety

No calculator certifies drinking water quality or safe system operation. Water quality, backflow prevention, electrical safety, structural integrity and hygiene requirements need separate assessment. Consult qualified professionals for safety-related decisions.

Content and external links

We aim to provide clear and accurate content, but information may be incomplete or outdated. Providers of linked websites are responsible for their content; a link does not endorse their statements.

Statutory liability

These notices do not limit liability that cannot lawfully be excluded, including liability for intentional misconduct, gross negligence or injury to life, body or health.

Report an error

Send reports of calculation or content errors to [email protected], including the affected link and the inputs used.

Last updated: 11 October 2026