We are always asked about best practice for storing water on site, so we asked our team to put together a guide for storing water on and around site. 

Following this guide will help keep water stored in water bowsers and water tanks in good condition and safe for use.


  • Ensure the ground is suitable to take the weight of the water bowser/tank (1000 ltrs of water = 1 ton in weight without the bowser/tank)
  • Ensure the bowser/tank is get in good, clean condition
  • Only use water from a reliable source
  • Clean with warm soapy water
  • Regularly flush or empty tanks or lines that are going to store water for a period of time
  • Drinking water should be tested every 48 hours to confirm the water is safe to drink
  • At each fill, add the correct dose of chlorine tablets. This will prevent any growth of algae/bacteria
  • Store bowser/tank in a cool place (ideally preventing temperatures from rising above 20°C)
  • Regularly check for damage to the bowser/tank and that the lid is still on and in place


  • Store water in direct sunlight
  • Remove any lids that are present
  • Use the water bowser/tank for any other purpose than holding water (what it is designed for)
  • Store next to any chemicals, they will not damage the plastic bowsers but will seep through and contaminate your water supply
  • Drill or cut into the bowser or tank when water is being stored, as Swarf will contaminate your supply
  • Fill the bowser or tank with water from an unknown source
  • Run any pipe off the bowser that may cause a back fill (none return valves and pumps can be put inline)
  • Use chemical cleaners to clean the bowser or tank
  • Allow tank or pipework to freeze, this can cause tanks and pipes to split.

If there is any additional information you would like to know, let us know! 


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