Backflow Testing

At ANSA Plumbing we use the most advance and accurate leak detection method available. Backflow is a reversal of the normal direction of water flow in your water supply plumbing system. It presents a hazard where your water supply is inadvertently interconnected with a source of pollution. Those pollutants could then enter your water supply.

Backflow can only occur when the water delivery main is at a lower pressure than your plumbing system. For example, when there is a burst or ruptured main; or excessive demand during fire fighting operations and the like. Backflow can also occur if a pump is connected to your water plumbing system.

  • In this example dirty water from the hillside pool with siphon back or back flow down the hosepipe and into the clean water tank. To prevent this from happening, the house's external tap should be fitted with a backflow preventer.

Backflow Testing Diagram

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