How To Build A Greywater Sump Pump Filter Part 1 This is part 1 in this series. Building a Greywater Sump Pump does not have to be a daunting task, In these vides we show you a very easy way to build an all in one system. You Might Also Like How To Dig Trenches For A DIY Greywater System – Updated April 26, 2020 How To Assemble The DIY Greywater Aquifer Pipe Reducer Coupler April 26, 2020 How To Assemble The DIY Greywater Aquifer Pipe End Riser April 23, 2020