Minimax Big Blue

The Minimax Big Blue is our highest capacity water softener.Designed and engineered in the UK to work with all types of British plumbing systems, it can deal with up to 6 bathrooms meaning it is perfect for big families and business. Providing 24/7 softened water, no matter the water usage.

  • Fits easily in kitchen cupboard
  • Suitable for 3 bathrooms
  • Twin tank design guarantees 24/7 soft water
  • Low salt consumption
  • Made from recycled plastic
  • 10 years guarantee

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Why buy a Minimax water softener

Europe’s No. 1 in Water Softening Technology

The Minimax range is manufactured by Harvey Water Softeners, the number one manufacturer in England and Europe for the domestic market.

With over 37 years experience, the family run business sells water softeners in the UK through a network of professional, independent and carefully selected local water treatment businesses. Your Minimax dealer is expertly placed to give you the best advice for your home and needs.

Manufacturing Products that Work in Every British Home

All Minimax water softener systems are designed and hand-built in Woking, Surrey by a dedicated team of individuals. If you would like to arrange a tour of the factory and meet our team, contact us and we will invite you in.

The Minimax range is expertly designed to be suitable for every type of home, plumbing system and even high flow megaflow cylinders and multiple power showers.

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See how we compare

Read our comparison guide and see just how great our product is.

How it works

The Minimax M3 Water Softener is a revolutionary water softener. Compact enough to fit under your kitchen sink and supply soft water to your whole house.

Learn more

10 year guarantee

Designed by the leading manufacturer

Made in the UK

Made from recycled plastic

What our customers say

The Minimax has replaced a ten year old electric machine with a single cylinder. The old machine had ceased softening the water. The new machine has served, not only as a replacement but provides a better quality of softened water.

I cannot understand why people in hard water areas do not invest in a water softener. In 14 years we have had no scale build up anywhere, we have never had to clean the shower head, and our central heating has never had to be drained down. 

We just had a Minimax M2 installed about 10 days ago after moving to the Reading area from South Wales. We really struggled with the hard water marking of sanitary ware and taps and the difference it made with detergents etc. It is probably one of the best items we’ve bought as it’s made such a difference.