Affiliate Disclosure

Transparency is important to us. This page explains how Water Quality Check earns money through affiliate partnerships while providing free water quality information to Minnesota residents.

How We Make Money

Water Quality Check is a free resource that provides water quality information for cities across Minnesota. To keep this service free, we participate in affiliate programs that allow us to earn commissions when you purchase products through our links.

Amazon Associates Program

Water Quality Check 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.

Other Affiliate Partnerships

We also partner with select water filter and water testing companies directly. When you click on links to these partners and make a purchase, we may earn a commission.

Our Commitment to You

While we earn commissions from affiliate links, this does not affect:

  • Our recommendations: We recommend products based on quality, effectiveness, and value — not commission rates
  • Product prices: You pay the same price whether you use our affiliate link or go directly to the retailer
  • Our water quality data: Our water quality information comes directly from EPA data and is not influenced by affiliate relationships

How We Choose Products

We research and recommend products based on:

  • NSF/ANSI certifications for contaminant removal
  • Independent lab testing results
  • Customer reviews and ratings
  • Value for money (initial cost and ongoing filter costs)
  • Effectiveness against specific contaminants found in Minnesota water

Identifying Affiliate Links

Pages containing affiliate links will include a disclosure notice. Links to product pages on Amazon or other retailers are affiliate links unless otherwise noted. We use "rel=sponsored" on all affiliate links to be transparent with both users and search engines.

Questions?

If you have any questions about our affiliate relationships or product recommendations, please contact us.

Last updated: January 2026