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Downpipe Rainwater Diverters

Downpipe “first flush” water diverters keep roof rainfall from entering your water tank during its initial run-off. Debris and leaves, among other things, are commonly seen in the initial flush of rains. A rainfall diverter can assist keep debris out of your rainwater tank.

Features and Benefits

  • Keeps unwanted elements out of your water tank (e.g., sediment, droppings, spiders, insects, mosquito eggs and debris).
  • Improves the quality of the water, extending the life of pumps and appliances.
  • It’s quite simple to set up and maintain.

How do Downpipe Water Diverters Work?

  1. Rain pours from the sky and cascades down your gutters and roof.
  2. Water flows into the downpipe from your gutter and starts heading towards your tank.
  3. Vertical PVC piping intersects your piping your gutter to your tank, which the initial rainwater flows into a starts to fill.
  4. A float ball valve located inside the vertical pipe starts to rise with the rainwater. Once full, the ball value creates a seal at the top which prevents dirty rainwater escaping.
  5. Clean rainwater continues flowing from your gutter, through the pipe, over the ball and into your water tank.
  6. A slow-release valve at the bottom of the vertical PVC piping releases the dirty water over time. Alternatively, a drip irrigation system is sometimes fitted which leads to your garden.

Should You Install a Rainwater Diverter?

If keeping your rainwater as fresh as possible is important to you, then we highly recommend installing a rainwater diverter in addition to gutter strainers and/or leaf strainers.

Water diverters will help to prevent any debris and pollutants on your roof and gutter from being washed straight into your tank. This will also help to reduce the sludge that would otherwise collect at the bottom of your tank and need cleaning out.

For the best quality water tanks, call Tanks Direct.