Top tips for rainwater tanks

Save your 4 - rainwater tanks

Rainwater tanks are a great way to collect water for use around the home, and to maintain their safety and efficiency, it's important to keep them in good condition.

If you've got a tank in your garden or you've just purchased a property with a tank, here's how to take care of it. Generally, rainwater tanks require attention within a year or two, and by following our maintenance guidelines, your tank should provide you with suitable water for years to come.

Under Level 1 Water Restrictions, only rainwater tanks that are not connected to the drinking water supply are exempt from water restrictions.

To begin

  • Start by installing mosquito-proof mesh over gutters as well as any above-ground tanks. This will prevent bugs and animals from contaminating the water and will slow the accumulation of debris.
  • To further decrease the build-up of rubbish, consider installing gutter guards or downpipe screens to prevent blockage and contamination.

Once a month

  • Check and maintain mosquito-proof mesh when needed.
  • Clear roof and gutters of debris often.
  • Check water levels.
  • Look out for dead animals.
  • Check for signs of algae and mosquitoes.
  • If you have a filter, make sure it is not blocked by debris.
  • Clean your flow restrictor.

Every two to three months

  • Be sure to check for leaks in gutters, pipes, pumps and the storage tank, and repair any damages that are found.
  • Make sure that the water switch, which allows you to access the drinking water supply once your water tank supply has diminished, is working correctly.
  • If you have an above-ground tank, check that the screen cover does not have any damage. If the screen is in need of repair, you may either fix it or replace it.

Every six months

  • Check the water quality of your rainwater, especially if you use your rainwater for showering and cooking purposes. To test your water quality, you can simply buy an at-home testing kit and look for water discolouration and sediment deposits within the tank.
  • Be sure to check the tank foundations to make sure they are stable and even.
  • Keep a lookout for ground leaks.
  • Make sure your pumps are properly functioning as they can affect water quality and efficient delivery of water.

After 12 months, you should try to thoroughly flush downpipes and drainage pathways in order to decrease the build-up of debris. You may also want to hire a contractor to remove sediment within the storage basin every two to three years.