Water in diesel detection kit

The HYDROKIT® is an effective “Go, No-Go” field test designed to periodically check for free water, which is removed to ppm levels by properly operating filter/separators, Aquacon®, and monitor vessels. 


How it works

The HYDROKIT® is designed to indicate free water in excess of 200 ppm by changing the powder contained in the sample tube to a pink color. Other concentrations can be estimated using the other colors on the card.


Samples are normally taken downstream of the vessel, but they can also be taken at other points in the fuel distribution system. 


It provides better water determination than ASTM D2709 or D4176 and is designed for “fail-safe” operation, with false negative readings unlikely. 



If you would like more information on the HYDROKIT®, or any of our field test kits, please contact one of our team who will be happy to help.

Each model comes complete with:

  • Sample tubes
  • Wide mouth glass sample jar(s)
  • Needle holder assembly
  • Instruction card
  • Colour indicator comparison card


  • Perfect for diesel fuel
  • Easy to use - automatically controls the sample size
  • Simple evaluation
  • Consistent results in a wide variety of undyed diesel fuels
  • Manufactured to strict quality control specifications
  • Better water determination than ASTM D2709 or D4176