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DX50 Chlorine Dioxide

DX50 Water Tank Treatment

DX50 Water Tank Treatment

Regular price $69.00 NZD
Regular price Sale price $69.00 NZD
Sale Sold out
Taxes included. Shipping calculated at checkout.

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DX50 Water Tank Treatment - key benefits

  • 5 litre of DX50 Water Treatment will treat up to 100,000 litres of water
  • Chlorine free - it has no free chlorine in it (same as table salt NaCl)
  • Inactivates a wider range of pathogens
  • Ideal for rainwater tank treatment for your home or a bach
  • Does not harm the soil
  • Potable water purifier
  • Evaporates leaving no residue
  • Kills 2.46x better than Chlorine and faster

Read more

Water Tank Treatment

It is ideal for rainwater tank disinfectant, grey water systems, fresh produce sterilisation, RV, motorhomes, caravans and boats storage tanks, stock drinking water, Clean In Place (CIP), and any other potable water that has a risk of pathogens contamination domestically and commercially.

It inactivates bacteria, spores, fungi, moulds, biofilms, and viruses - even at low concentrations and over a wide pH range. Chlorine Dioxide is recognised by the New Zealand Drinking Water Standard (NZDWS).

More benefits of using chlorine dioxide in your Life

  • Effective over a wide pH range (2-11)
  • Does not react with organic material to form trihalomethanes (known carcinogens)
  • Destroys biofilms and algae
  • Not susceptible to bacterial resistance
  • Non-corrosive – easy on distribution systems
  • MPI registered - water treatment C61

      Whether you collect your water from your roof, get it from a local creek, have a bore or just want to play it safe, this product is for treating your water.

      Easy and safe to use

      Woman purifying a water tank with dx50 water treatment

      Our best-selling product is our DX50 Water Treatment and  is available in 5, 20 Litre for DIY home users as well as larger volumes for industries.

      People usually ask us: “Is it safe to drink? Will I taste it?”
      The answer is simple. Yes and no.
      It is safe to drink and no, you will not taste it if you stick to the Directions for Use.
      To read more on how to treat your water tank read our blog How to Sanitise your rainwater tank.

      When I did my research for a strong sanitiser that would tick all the boxes, I was pleased that I found it in DX50. You just need to add a small amount to water. It's so economical, it's insane.” – Rose Scott, Scott’s Hir-a-bin, Motueka

      Shipping & Returns

      We offer free delivery on all orders of Products over $150 shipped within New Zealand.

      We offer a flat rate of $18 for shipping across New Zealand and $11 for 2Ltr container and test kits range.

      All orders are processed within 1-5 business days.

      Please read our Return Policy


      Store in cool, dry area.

      Do not store above 30 C.

      It is recommeneds that this product should not be exposed to light (especially UV light) as it will break down quicker.

      Keep container tightly sealed when not in use.

      View full details

      Customer Reviews

      Based on 118 reviews
      Scott (Auckland, NZ)
      Second purchase. Awesome stuff

      I bought some DX50 about two years ago. The first time I used it I had a full dirty unknown history 25k ltr tank. I put in about a liter and a half and in a few days all the dirt fell to the bottom of the tank and the water tasted much better. I used that dose a few more times then forgot about it for about a year or so. I also use it for my spa. After about 18 months the mix lost its potency and I bought another jug to start the process again. Chlorine Dioxide is the best deal I know of for healthy purfying of water.

      Darius (Oslo, NO)
      Purchase experience

      Good communication, easy to find information, well arranged website clear way for purchasing the goods, very fast delivery. Highly recommended business to deal with. AAA+++

      Willie Morton

      We metered out the correct measure for our rural rain water tank
      The water quality improved almost immediately and continued to improve over the next couple of days. Clear, soft and naturally beautiful to drink.

      Paul Moreham (Nelson, NZ)

      I use DX50 to sterilise the water tank at Tata Beach and it gives peace of mind that the water is always safe and drinkable.
      It is also useful for other germ killing, sterilising functions too.
      A very useful product to have in the cupboard.
      Many thanks

      Customer (Auckland, NZ)
      DX50 Water Tank Treatment

      This product is fantastic. Very handy for large scale water treatment, I also expanded it out and use it now as our daily household cleaner for kitchen, toilets, hydroponics, chicken coops and more. Plus - excellent customer service every time. Patrick

      Thank you Patrick. We are pleased to see the different applications you use our product.

      Tash (Auckland, NZ)

      Made my tank water drinkable! It was smelly before but it was perfect after treating.

      Geoff Boyle (Te Awamutu, NZ)


      Dietricht Bredenkamp (Auckland, NZ)
      DX50 Water Tank Treatment

      Good service, Have yet to use the product

      Tony Stoop (Auckland, NZ)

      Good service and excellent product

      Gordon Allpress (Christchurch, NZ)
      G Allpress

      Have yet to use the product