With the expectation of drought we decided to go ahead as planned and create a rain collection system. The drums we got from local automotive dealerships. All we did we cut the tops off so that they’re removable and to gain access to the inside. Drilled a few holes for the overflow and usage and attached spigots. The drums we used only had bio-degradable cleansers which was easy to rinse out and safe for watering the garden. we will be expanding the system by adding two more barrels.