How affiliate links work
Some links to water-treatment products or retailers may be affiliate links. If you follow one and make a qualifying purchase, Hard Water Index may receive a commission. This generally does not add to the price you pay.
How links are labeled
Product recommendation sections include an affiliate disclosure, and commercial links are technically marked as sponsored where appropriate. An external link is not automatically an endorsement of every product or claim on the destination site.
What commissions do not change
Affiliate relationships do not change source records, hardness classifications, compliance statuses, missing-data treatment, or the need to verify a concern through testing. Recommendations begin with the water problem shown in the available data, not the commission offered by a seller.
Before purchasing treatment
Confirm the problem at the property, check product certification for the specific reduction claim, and account for installation and maintenance. A general recommendation is not a guarantee that equipment is suitable for a particular home.