Poultry Water Cup System Automatic Chicken Water 2 Cup line - (As seen in picture) Requires no electrical equipment or connection to faucet pressure. Connect to a bucket to have a natural pressure watering system <5psi. (bucket and pipe not included) The easiest way to water your chickens. They drink from the cup, which allows the right amount of water to come into the cup. The chicken waterer for sale is a two cup system.