The simple effective way to collect more water for your rainwater tank.
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The Gain Rain® is the simple way to collect more rainwater. Easy to use, it is designed to fit into the inside of a downpipe, it creates a diversion dam directing water away from downpipes not connected to storage. This allows the maximum flow of rainwater to be directed to rainwater tanks or diverters. In the event of high rainfall, water overflows through the centre of the downpipe.