• DX50 Water Tank Treatment 2Ltr bottle
  • DX50 Water Tank Treatment 2Ltr Bottle
  • DX50 Water Tank Treatment containers collection
1 3

DX50 Chlorine Dioxide

DX50 Water Tank Treatment

DX50 Water Tank Treatment

$69.00 NZD
$69.00 NZD
Sale Sold out
Taxes included. Shipping calculated at checkout.
Volume
2467 sales

Free Shipping Over $150
  • American Express
  • Apple Pay
  • Google Pay
  • Mastercard
  • Shop Pay
  • Union Pay
  • Visa

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


    Resources

    SDS - Safety Data Sheet

    Directions for use

    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

    Storage

    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 172 reviews
    87%
    (150)
    6%
    (11)
    2%
    (4)
    1%
    (2)
    3%
    (5)
    98.3
    99.4
    M
    Monica Kang (Wellington, NZ)
    High quality products and great service

    I have been using DX50 water tank treatment for the last few years. They offer high quality products and Ido the person I talked to on the phone has been fantastic! The delivery is super fast too. I am glad that we have a company that sells the high quality water tank treatment products.

    Hi Monica,
    Thank you so much for your wonderful feedback and ongoing support! We’re thrilled to hear you’ve been happy with the DX50 Water Tank Treatment and our fast delivery.
    Ido was indeed fantastic — while he’s no longer with the company, I’m here and just as eager to help whenever you need assistance!
    We truly appreciate your kind words and look forward to continuing to provide you with high-quality products and service.
    Best regards, the team at DX50 Chlorine Dioxide

    B
    Blair Polly (Wellington, NZ)
    Stop demanding reviews with more than one email.

    Fast delivery of product but hate begging for reviews multiple times. Stop it.

    Hi Blair,
    Thank you for your feedback — we’re glad to hear you were happy with the fast delivery.
    We truly appreciate reviews, as they help other customers make informed decisions, but we understand that multiple follow-up emails can be frustrating. Please know that we only send a maximum of two review requests, spaced out intentionally to be respectful of your time. That said, your input is noted, and we're always looking to improve how and when we communicate.
    Thanks again for taking the time to share your experience.
    Kind regards, the team at DX50 Chlorine Dioxide

    L
    Leslee (Auckland, NZ)
    Perfect

    Does a great job

    Hi Leslee,

    Thank you so much for your kind feedback! We're really pleased to hear you had a positive experience — it means a lot to us.
    If you ever have any questions or need support in the future, don't hesitate to reach out. We’re always here to help.

    Thanks again for taking the time to leave a review!

    Warm regards, the team at DX50 Chlorine Dioxide

    P
    Pawel Markowski
    DX50 order

    Thank you, I placed my order, and received it a few days later without any problems, and the communication was good. 👍

    Hi Pawel,
    Thanks so much for your kind words — we truly appreciate your support! It's great to hear that you had a positive experience, and we’re so glad we could meet your expectations.

    We’re always here if you need anything in the future.

    All the best, the team at DX50 Chlorine Dioxide

    K
    Kieran (Auckland, NZ)
    Great product

    Simple and easy to use, good peace of mind. Fast delivery. Thank you

    Hi Kieran,
    Thank you for your wonderful feedback! We're so glad to hear you were happy with your experience. It really means a lot to us when customers take the time to share their thoughts.

    If we can help with anything else down the track, don't hesitate to get in touch.

    Best regards, the team at DX50 Chlorine Dioxide

    C
    Cavaletti Limited (Hamilton, NZ)
    Very Good Product

    Very Good Product

    Hi Cavaletti Limited,

    Thank you for your great feedback! We’re delighted to hear that you’re happy with the DX50 Water Tank Treatment.

    If you have any questions or need assistance in the future, please don’t hesitate to reach out.

    Best regards, the team at DX50 Chlorine Dioxide

    H
    Harvey KEITH

    Ordered and arrived fast well done

    Hi Harvey,
    Thank you for your positive feedback! We’re glad to hear your order arrived quickly and that you’re happy with the service.
    If you need any further assistance or have questions about the DX50 Water Tank Treatment, feel free to reach out.
    Best regards, the team at DX50 Chlorine Dioxide

    T
    Tom Cooper (Hamilton, NZ)
    Good

    Worked quickly and well, no aftertaste

    Hi Tom,
    Thank you for your great feedback! We’re pleased to hear the DX50 Water Tank Treatment worked quickly and that you experienced no aftertaste.
    If you have any questions or need further assistance, please don’t hesitate to get in touch.
    Best regards, the team at DX50 Chlorine Dioxide

    D
    David McCarthy (Whangarei, NZ)

    DX50 Water Tank Treatment

    G
    Guy Ross (Auckland, NZ)
    Wonky water

    Our tank water became smelly and awful tasting over summer. Treated it once with DX50 and it was back to normal overnight. Fantastic!

    Hi Guy,
    Thank you for sharing your experience! We’re delighted to hear that the DX50 Water Tank Treatment worked so effectively and quickly to restore your tank water.
    It’s great to know our product helped make your water fresh and pleasant again. If you ever need any assistance or have questions, we’re always here to help.
    Thanks again for your feedback!
    Best regards, the team at DX50 Chlorine Dioxide

    Load More