Water Tanks in Perth: How Do You Ensure the Drinkability of Rainwater?

The use of water tanks in Perth to collect rainwater may help cut your water bills, serve as an alternative source of clean water in times of drought, and help save the environment. Depending on tank size and climate, rainwater harvesting can replace mains water use by as much as 100 percent. This, in turn, can help reduce water infrastructure operation costs, protect remaining environmental flows in rivers, and make existing dams and desalination plants more efficient.

Rainwater collected from a well-built and well-maintained water tank system can be suitable for many domestic uses, including drinking. Bear in mind, however, that tank systems need to have additional features like first flush devices and UV filters to provide potable water. You can also follow the tips below if you intend to use rainwater for drinking to minimise the health risks for you and your family.

  1. Keep roof catchments clean and clear of leaves and other debris. Remove overhanging branches from trees and shrubs that get in the way of your rainwater collection system.
  2. Make sure the plastic pipes and fittings you use are lead-free and “food grade”. Be wary of pipes that are manufactured with low levels of lead. Research your options thoroughly.
  3. Cover the inlet and rotate the down pipe to one side so that the first flow of rainwater rinses down the roof and gutters and runs to waste. Likewise, cover your tank’s inlet and overflow with a screen or mesh to prevent animals from accessing the water.
  4. Use a well-maintained leaf trap to reduce the amount of organic matter that finds its way into the rainwater tank. You may also want to have roof gutter guards installed to prevent leaves from entering your system at the point of collection.
  5. Finally, if you decide to invest in a system with a UV water filter, which is typically used along with specialised filters and first flush devices, you won’t have to rely on chemicals to treat the collected water. UV light can sterilise water according to the standards set by the Department of Health.

The pointers enumerated above are necessary to ensure your harvested rainwater is safe for all requirements in and around the home, particularly drinking. For a well-designed and well-constructed rainwater collection system, you can get in touch with trusted manufacturers of steel water tanks in Perth such as Rainfill Tanks and Curved Roofing Supplies.


Is The Water In Your Rainwater Tank Safe To Drink?, Environmental Health Guide

Guidance on use of rainwater tanks, Australian Government Department of Health

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