•your favorite utility knife.
•a large container to act as the cistern. I used a rubbermaid tub gleaned from the street in front of our house.
•garden hose: the amount will depend on how far you'll need the water to travel for your gardening needs. Mine is 30'.
•a nozzle or valve for the watering end of the hose.
•gaskets or gasket material: some gaskets came with my hose, I used a bike inner tube for the rest.
•pvc threaded fittings: we're looking to trap the wall of the cistern tightly between gaskets at the point where the hose is attached.
•something to filter the rainwater and prevent evaporation. I used a coffee bag.
•a rope or bungie to tighten around your cover.