We have one hooked up to a downspout, actually not right now, but we did last summer and fall. Don't have much need to water anything in the winter! We use it for watering plants. We have 2 plastic 55 gallon barrels that are looking forward to becoming rain barrels as well. Hubby did just one last summer sort of experimentally. We had the barrels, just had to buy the faucet part.