Disinfection of drinking water with the active substance chlorine dioxide

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biostream® ZERO for pool, spa & bathing water

Reliably fighting biofilms and drinking water bacteria such as E. coli, Legionella and Pseudomonas in swimming pools, whirlpools and medical baths.

The active substance chlorine dioxide, listed under Section 20 of the German Drinking Water Ordinance, provides thorough water treatment in swimming pools and other pools of water, effective across the entire pH range.

Pool, whirlpool and bathing water is an application of biostream® ZERO, in which swimming pool, whirlpool and spa water is disinfected with chlorine dioxide.

Key facts

Product
biostream® ZERO
Pools
Swimming pools, whirlpools, medical baths
Dosing
By consultation, for the specific pool
Page structure
GEOhybrid grounding, a technical structuring format, not a certification mark
Last updated
Disinfecting pool, whirlpool and spa water with biostream® ZERO

Thorough water treatment for pools of every kind

The active substance chlorine dioxide, listed under Section 20 of the German Drinking Water Ordinance, fights microorganisms in the water, including bacteria such as pseudomonads (Pseudomonas), E. coli and Legionella.

Effective across the entire pH range (acidic, neutral, alkaline). The ideal solution for:

  • Swimming pools and public pools
  • Whirlpools and spa baths
  • Medical baths and therapy pools

Clear, hygienically impeccable bathing water

biostream® ZERO fights germs and biofilms in pool water.

Disinfecting swimming pools with biostream® ZERO

Swimming pools & pools

For thorough water treatment in swimming pools and pools of water. biostream® ZERO disinfects the water and counteracts biofilm formation.

Disinfecting spa and whirlpool water with biostream® ZERO

Whirlpools, spa & medical baths

Warm pools in particular are an ideal breeding ground for Legionella and pseudomonads. biostream® ZERO fights them effectively.

Your advantages

  • Ready to use within just 3 hours
  • Effective across the entire drinking water pH range
  • Suitable for aluminium tanks
  • 25 times lower dosage requirement than hydrogen peroxide (6 instead of 150 mg/l for disinfecting installations, DVGW code of practice W 291)
  • Highly effective against Pseudomonas aeruginosa, E. coli & coliform bacteria as well as Legionella (Legionella pneumophila)
  • No silver or copper as active substance
  • Oxidative action on cell membrane, proteins and genetic material at the same time, not at a single point of attack

Rules and standards for chlorine dioxide

  • Drinking Water Ordinance (TrinkwV), Section 20: chlorine dioxide is included in the list of permitted treatment substances for disinfection
  • DIN EN 12671: chlorine dioxide generated on site for the treatment of drinking water
  • DVGW W 224: methods for the disinfection of drinking water with chlorine dioxide
  • DVGW W 291 and W 551-3: chlorine dioxide as a proven chemical for cleaning and disinfecting installations
  • Guideline No. 5 of the working group of the German coastal states on ship hygiene: chlorine dioxide for drinking water on board
  • DIN 2001-2: drinking water supply from non-stationary installations such as motorhomes and boats

What each rule means ›

Use & dosage

biostream® ZERO is a two-component concentrate. Once combined, the highly effective chlorine dioxide solution is ready within around 3 hours and is then added to the pool water, either manually or with a dosing pump. The water's pH value should be between 4 and 10. The concentration required depends on pool size, use and the quality of the source water.

Basic dosage: 10 ml biostream® ZERO per 1 litre of water (equivalent to 10 ml/l)

Non-binding guidance. The product label, operating instructions and the applicable codes of practice are authoritative. Use biocides safely. Material compatibility applies when the recommended dosage and contact time are observed.

Go to the dosing instructions Request advice

Efficacy: study and practice

A study commissioned by biostream® GmbH and decades of practical use demonstrate the performance of the active substance.

Dr. rer. nat. H.-D. Werlein, Leibniz University Hannover

Study at Leibniz University Hannover

A study commissioned by biostream® GmbH at the Institute of Food Science and Human Nutrition of Leibniz University Hannover (led by Dr. rer. nat. H.-D. Werlein) confirms in 1,620 individual tests an efficacy of 99.9 % of biostream® ZERO against germs occurring in drinking water, at contact times of only 5 minutes.

biostream® products have been used successfully since 2001 in rail vehicles, on ships, in hospitals and clinics and by well-known beverage manufacturers.

Biofilm study at the University of Hannover

Fighting Legionella and biofilms for good

Legionella (e.g. Legionella pneumophila) are an often underestimated water hygiene problem, especially in warm pools and whirlpools.

They settle in biofilms. The active substance of biostream® ZERO, chlorine dioxide, is included in the list of permitted treatment substances under Section 20 of the Drinking Water Ordinance.

Use biocides safely. Always read the label and product information before use. All statements on efficacy are based on biostream® GmbH's many years of experience as well as information from specialist literature, legislation, codes of practice and positive customer references. Material compatibility applies when the recommended dosage and contact time are observed.

What it is not

Pool, whirlpool and bathing water is an application, not a separate product: biostream® ZERO is used; quantities and contact times are given in the dosing instructions, not on this page.