Q. Can we use Gutter Pumper to harvest rainwater as well as stopping overflows?
A. Yes, many people do this. Because of the smaller hydraulic head, it is best to use a 25mm X 20mm PVC reducing elbow to connect the 20 mm vertical drop to a 25 mm horizontal pipe when diverting water to the tank’s top meshed inlet. For quality rainwater harvesting, also consider connecting a Supadiverta to every downpipe.