How To Build A Greywater Sump Pump Filter Part 3 This is part 3 in this series. In this video we show you how to: Prepare the Sump Pump for installation. You Might Also Like How to assemble the DIY Greywater Aquifer Pipe April 5, 2019 Shower To Lawn DIY Greywater System | The Before Overview April 21, 2020 How To Build A Greywater Sump Pump Filter Part 2 April 20, 2020