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Maintaining a Rainwater Tank

It's important to maintain your rainwater tank and components so they work effectively and reduce the risk of contamination. Preventing problems before they arise will save you time, money and water.

Roofs and gutters

Gutters and roof catchment areas should be regularly inspected and kept clean and clear of leaves and debris. Any overhanging branches should be removed. It's a good idea to use screens or guards, which should be regularly cleaned. Keeping your rainwater screened and flowing cleanly and quickly from your catchment area into your tank reduces the build up of sludge as well as the risk of mosquitoes breeding in your tank.

Tanks

Check your tank for sludge at least every two to three years. If sludge is covering the bottom of your tank, you'll need to remove it by siphoning it out or completely emptying your tank (contact a professional tank cleaner if you're unsure). Excessive sludge build up is a sign of inadequate roof and gutter maintenance.

First flush devices, screens and guards

It's a good idea to install appropriate screens and guards to stop debris and insects entering the tank. Installing a first flush device is essential to reduce the amount of sediment and other materials entering the tank and polluting the water. Screens and gutter guards offer further protection by stopping insects and debris entering and breeding in the tank.