Terms of Service
Last updated: November 2026
Chemical results disclaimer
All calculator results are estimates based on the numbers you provide and general water-chemistry guidelines. They are not a substitute for professional advice. Always confirm quantities against your product's label before adding any chemical to your pool or hot tub. ClearWaterCalc is not liable for property damage, injury, or water-quality issues resulting from the use of our calculators or Pro dosing plans.
Using the service
The free calculators are provided "as is" for personal, non-commercial use. We are a brand-neutral tool and do not sell pool or spa chemicals.
Pro subscription
Pro is billed monthly or annually through Lemon Squeezy and renews automatically until cancelled. Cancel anytime from your account; no cancellation fee applies. Refunds are available within 14 days of any charge, one per customer.
Contact
Questions about these terms? Use the form on our Help page.
ClearWaterCalc — this page is a draft pending owner review.