Affiliate Disclosure

Last updated: August 2026

Our relationship with product brands

HardWaterHQ participates in affiliate marketing programs, including the Amazon Associates Program and direct affiliate programs with water-treatment brands. This means that when you click certain product links on this site and make a qualifying purchase, HardWaterHQ may earn a small commission — at no extra cost to you.

The price you pay is exactly the same whether you click through our link or go directly to the retailer. Commissions are paid by the brand or retailer, never by the consumer.

Which links are affiliate links?

We include affiliate links in product recommendations (water softeners, filters, and test kits). Not every product link is an affiliate link — we frequently link to resources, tools, and primary sources with no affiliate relationship when that's the best reference for the topic.

How this affects our recommendations

It doesn't. Our hardness data and editorial process determine what we recommend first, based on performance, value, and relevance. We do not accept payment for editorial placement, and affiliate relationships never influence which products we recommend or how we review them. If an affiliated product isn't the right fit for a situation, we say so.

Amazon Associates disclosure

HardWaterHQ is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. As an Amazon Associate, we earn from qualifying purchases.

FTC compliance

This disclosure is made in accordance with the Federal Trade Commission's guidelines on endorsements and testimonials in advertising (16 CFR Part 255).

Questions? Email [email protected].