Terms of Purchase

Last updated: October 21, 2026

What you are buying

A one-time purchase of The Household Chemistry Bible (Edition 1.0, October 2026) from The Household Chemist, delivered as digital PDF files:

• the main handbook (482 pages)
• a print edition (481 pages)
• four bonus PDFs: the Quick Reference (16 pages), the Troubleshooting Workbook (27 pages), the Compatibility Charts (18 pages) and the 50 Household Mistakes Checklist (5 pages)

Nothing is shipped, and there is no subscription.

Price and payment

The price is shown on this page and at checkout, in US dollars. Payment is processed by Gumroad. Any taxes are shown at checkout before you pay.

Delivery

After payment, Gumroad gives you access to the files and emails you a receipt with a link to them.

Your license

The files are licensed for your personal, non-commercial household use. You may print copies for your own household. You may not resell, redistribute, upload or share the files, in whole or in part, without written permission.

Educational reference

The handbook is an educational reference. It does not replace product labels, the care instructions from the maker of your surfaces, medical advice or professional assessment. Follow the label on the product you are using. In a poisoning emergency in the United States, call Poison Control at 1-800-222-1222.

Updates

This purchase covers Edition 1.0. No update policy has been announced.

Refunds

A 30-day money-back guarantee applies. See the refund policy.

Contact

Reply to your Gumroad receipt email.