Image gallery for: Claim a diy rainwater collection system using two large garbage cans placed on a wooden stand the setup includes a screen at the top to filter out debris from the incoming water the water flows through a 2 inch pvc pipe connecting the two containers and is directed into the first container a 2 inch tee fitting is used to join the pipe allowing the water to pass into both cans the system has overflow outlets for excess water preventing spillage a garden hose adapter at the bottom allows easy connection for draining or use the entire assembly is made with pvc pipes fittings and unions for easy assembly and adjustments this setup is ideal for collecting and using rainwater efficiently