Contact

We read every message and welcome corrections.

Email us at [email protected] for feedback, corrections, or suggestions for guides you'd like us to write.

Corrections

Specs, prices and guidance change, and we can miss things. If you spot something out of date or inaccurate, tell us which guide and what's wrong, and we'll review it promptly.

Note

We can't diagnose your water by email, and we don't test water samples. For a health or legal decision about your drinking water, test it with a certified laboratory or consult a licensed professional.