Water Softener Test Kit

See at a glance whether your softener is doing its job. Softened water should read near zero hardness with a rise in salt — and your unsoftened drinking tap should stay hard.

• Results in 60 seconds
• Proven colour-match chemistry
• Free delivery on orders over £30
• UK-based support

Tests hardness and sodium chloride, plus 18 additional analytes on the same strip.