Terms of use

Last updated 30 September 2026.

WaterBalanceCalc is a free tool for building water balances. By using it you agree to the following.

Independence

WaterBalanceCalc is an independent implementation of published water-balance methodology. It is not affiliated with, endorsed by, or operated on behalf of the International Water Association (IWA), the IWA Water Loss Specialist Group, the World Bank, the American Water Works Association, or the authors of WB-EasyCalc or WCB-EasyCalc. References to those organisations and tools describe the origin of the methods used and imply no association.

No warranty

The calculator implements published methodology in good faith but is provided as is, without warranty of any kind. Results depend entirely on the data you enter and on estimates whose uncertainty can be large. Do not commit capital, set targets or make regulatory submissions on the basis of these results without independent verification, including field measurement of real losses. To the extent permitted by law, we accept no liability for decisions made using the tool.

The AI assistant

Values and text suggested by the assistant are generic starting points generated by a language model, not engineering advice about your system. You are responsible for reviewing anything you accept into your balance and for any report or narrative you share.

Your account and content

You are responsible for the accuracy of what you enter and for whom you share a balance with. Balances you save remain yours; you may use your results freely, including in reports and submissions, with or without attribution. A credit line naming WaterBalanceCalc is appreciated but not required.

Acceptable use

Don't attempt to disrupt the service, access other users' data, or exceed reasonable use of the assistant and email features. We may limit or suspend access that does.

Intellectual property

The site's software, design and written content are protected by copyright and may not be copied or republished without permission. The underlying methodology belongs to its published authors and is used with acknowledgement.

Changes

We may update these terms; continued use after a change means you accept it. Questions: hello@waterbalancecalc.com.

WaterBalanceCalc is operated by Aqua Analytics Australia Pty Ltd. These terms are governed by the laws of Queensland, Australia.