Privacy Policy

Last updated August 2026

What we collect

Numbers you type into any calculator on this site stay in your browser. They are not sent to a server, saved to a database or shared with anyone. Close the tab and they are gone.

Analytics

We may use privacy friendly analytics to count page views and see which calculators get used. That data is aggregated and does not identify you. We do not build advertising profiles.

Cookies

The site works without advertising or tracking cookies. If we add a preference cookie later, it will only remember display settings such as your unit choice.

Contact form

If you send a message through the contact page, we use your name and email only to reply. We do not add you to a mailing list.

Third party links

Some pages may link to product pages or manufacturer documents. Those sites run their own privacy practices, and we do not control what they collect.

Children

This site is aimed at pool owners and pool professionals. We do not knowingly collect information from anyone under 13.

Changes

If this policy changes, the date at the top of this page changes with it. Questions about privacy can go through the contact form.