Coliforms & Legionella Starter Pack

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The first kit for detecting coliforms (including E. coli) and E. Coli which provides results comparable to the laboratory method, in only 24h!


  • 1 Mini-Lab (reusable)
  • 1 test refill for the detection of coliforms (including coli) (valid for 1 test)
  • Detection threshold: < 0.1 CFU*/mL (*Colony Forming Units)
  • 1 test refill for the detection of Legionella pneumophila, all serogroups (valid for 1 test)
  • Detection threshold: 10 CFU*/mL (*Colony Forming Units)
  • Easy-to-read result on a strip
  • Use-by date: 12 months
  • Quick results in 24h
  • Easy-to-read result: the solution changes colour
  • Use-by date: 12 months
  • Mini-Lab dimensions: 22 x 17 x 8 cm
  • Test refill dimensions: 14.5 x 7.5 x 4.5 cm

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Frequently Asked Questions

How does the test work?

You simply need to take a water sample and follow the step-by-step procedure shown in the accompanying instruction leaflet. After 30 minutes of handling operations on the first day, the sample is left to incubate for 24h. This is the necessary and incompressible time needed to detect whether or not pathogenic bacteria are present. After this waiting time, you may interpret the result:

– no colour change, the test is negative.
– yellow staining, the test is positive.
If the result is positive, this indicates that there is a concentration of coliforms (including E. coli) greater than or equal to 0.1 CFU / mL (Colony Forming Units per millilitre of water), which is potentially hazardous to health.

Why do you have to wait 24h to obtain the result?

The reliability of the results of the Coliforms Water Test (including E. coli) is based on the incubation of the bacteria at a constant and homogeneous temperature for 24h in the incubator provided in the Mini-Lab. This is the minimum time necessary to reveal the presence of pathogenic bacteria. This is the same technique as the one used in laboratories.

Is the Mini-LAB reusable?
Yes, the Mini-Lab is reusable. It will be able to be used to carry out other analyses. It is compatible with all refill kits of the Water Test range.
Is the Refill test kit reusable?

No, each Refill test kit is for single use and is valid for one single test.

Can I use this kit to test bathing water?

Yes. The Water Test range is devised to test all water, including bathing water.However, legionellae are absent from sea water. Only the Coliforms Water Test can be used to test sea water.

Further information

Contents of the Mini-Lab

  • One 110-240V – 50/60Hz incubator with a power cable and European plug (contact us regarding UK or US plugs)
  • One 50 mL syringe + stopper
  • One 10 mL syringe with connector
  • One 1 mL syringe with connector
  • One instruction leaflet


Contents of the Coliform Refill

  • 1 vial
  • 1 filter
  • 1 ampoule of sterile water
  • 1 10 mL syringe


Contents of the Legionella Test Refill

  • 5 vials containing reagents and chemical components necessary for performing the test
  • 1 filter
  • 2 sterile water ampoules
  • 1 strip in a protective pouch
  • 1 syringe (10mL)

Where should I take a water sample at home?

You may choose to analyse all the water points you wish: shower, tap, hot water tank, etc. Showers are generally the devices which are tested most, due to the high risk of inhaling water contaminated with legionellae.

Is it better to sample hot or cold water?

We recommend that cold water or water at room temperature be used to perform the test.

How long does it take to perform the operations needed for the test?

The Coliforms Water Test is conducted in two stages, with a 24h incubation gap between the two stages. On the first day, handling operations should take approximately 30 minutes. The second phase consists in interpreting the result through colour changes. Please refer to the online animated tutorial to guide you through each of the steps.

I missed a step in the instructions. What should I do?

The instructions in the leaflet correspond to a precise scientific protocol modelled on the method applied in the laboratory. This methodology has been simplified but does not make it possible for you to miss a step without distorting the reading of the result. If you have missed a step, we advise you to perform another test.

The incubator does not show a continuous green light. What should I do? 

In the event of a fault in the incubator, contact us.
The table below describes the meaning of the warning lights:

Colour of the LED



The LED flashes blue

The incubation temperature has not been reached after 30 minutes

The ambient temperature of the room is too cold. The incubator must be used in a warmer environment.


The LED flashes red

Operational problem.
The incubator will not heat up.

The incubator must be replaced.


The LED flashes green

The temperature of the incubator is increasing.

If you unplug the incubator, it is normal for the LED to flash. When the incubator is at the correct temperature, the LED will be static green.

Télécharger la notice d’utilisation

Télécharger la Fiche de Sécurité  du produit (FDS)

Consultez la vidéo de suivi des étapes du test

Your are a professional ?

C4Hydro offers you a range of equipment and specific tests which makes it possible to follow the evolution of the concentration of Legionella pneumophila in your heated sanitary water system and water from autorefrigerant towers. Up to 6 analyses can be carried out simultaneously.


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