Surface water flooding

When levels of precipitation exceed the capacity of the stormwater system, surface flooding occurs. During periods of high rainfall, rainwater may collect in low lying areas where the capacity of the stormwater system has already been reached.

WaReg can be used to prevent surrounding areas from flooding

WaReg can be used to ensure that the stormwater system does not reach its point of overload diverting excess water to attenuation ponds or tanks. The flow out of the attenuation tank should be regulated in order to achieve an optimised and stable flow in the stormwater system.

Surface water flooding can occur when a stormwater outfall becomes inundated with backflow from rivers or lakes due to rising water levels. This can lead to low lying areas becoming flooded on a dry sunny day, and can cause extensive flooding on rainy days. When outfalls experience backflow and water starts to pond during times of high rainfall, their storage capacity is eliminated and surrounding areas, homes, sports grounds and other assets can be flooded.

Stop the backflow with WaStop

Backflow into the stormwater outfall pipes can be completely stopped by using a WaStop inline check valve. WaStop maintains the storage capacity of the stormwater system during high water levels in rivers of lakes. Surface flooding and ponding is thereby stopped.

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