Knaus Washing Machine Descaler

Knaus Washing Machine Descaler

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Give your washing machine a deep descaling treatment with this high-performance formula.

The liquid effectively removes limescale and calcium deposits from deep inside the machine, including the drum and pipes, and contains special additives to help prevent future build-up.

When used regularly, it can improve performance and help to prolong the life of your machine.  

Features and Benefits

  • Fast acting - This descaler has 3 powerful doses to help to prevent the build-up of limescale and calcium deposits in your machine quickly.
  • Powerful - This removes limescale and calcium from deep inside the machine to improve performance.
  • Easy to use - You just need to pour a third of this into your drum then run on a normal cycle to let it perform its magic.


  • Special additives help to prevent build-up
  • Suitable for all washing machines
  • Safety Click-lock Cap
  • Recyclable Removable Sleeve & HDPE 2 Plastic Bottle

How To Use

  • Pour a 1/3 of a bottle into an empty drum

  • Run on a normal cycle & clean any filters after use

  • For the first application or with an older machine, scale4 may have built up, therefore use half the bottle, run a cycle, clean any filters, then repeat

  • Descale every 50 washes (or every 30 for hard water areas)


  • Amongst other ingredients: 5 - < 15% Aliphatic Hydrocarbons

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