Advice for Storing Water On Site

Tips on the correct way to store water on site

We've put together advice on how to keep water stored in bowsers and tanks preserved its condition for safe use.

  • Ensure the ground is suitable to take the weight of the bowser (1000 litres of water is equal to 1 ton in weight without the bowser/tank)
  • Only fill the tank or bowser with water from an authorised provider
  • Keep bowser/tank in good, clean condition
  • Only use warm soapy water to clean the exterior of the bowser/tank
  • Regularly flush or empty tanks or lines that are going to store water for a period of time
  • Have water tested every 24 hours to confirm it is safe for drinking (drinking water only)
  • At each fill, add the correct dose of chlorine tablets. This will prevent any growth of algae/bacteria
  • Store bowser/tank in a cool area (preventing temperatures rising above 20 degrees celsius)
  • Check daily that there is no damage to the bowser/tank and the lids are secured in place


  • Store water in direct sunlight
  • Remove the lids
  • Store next to any chemicals that can splash or come into contact with the contents of the vessel
  • Use the water bowser or tank for any other purpose than holding water (what it is designed for)
  • Drill or cut into the bowser or tank
  • 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 (inside or out)
  • Allow tank or pipework to freeze as this can cause tanks and pipes to split