DIY installation of a 1500 gallon 2 compartment septic tank with 300ft of EZ flow drainage for our self build, off-grid post frame barndominium. This whole project took about 2 weeks to complete doing it all myself with other jobs in between. We had a 590 Deer Excavator rented for a different project and were able to use it to dig the tank hole, and we used our Sany Excavator for the drain field and trench going to the house pad. After covering the lines with a layer of dirt using a hand shovel, I finished covering the trenches with our New Holland C337 track loader. We passed our final septic inspection and the system is officially ready for use!