1. SWIMMING VALVE SYSTEM: The cup fills automatically with water. When the bowl becomes heavier, the faucet closes – no spilling! IMPORTANT: The rubber seal must be attached outside the bucket to avoid leaks. 2. DURABLE: Stronger, thicker plastic with a larger surface area that holds 50% more water. Perfect poultry drinking systems for chicks, chickens, ducks, quails, and turkeys. 3. EASY DIY: Mark each bucket 3–5 inches from the bottom, drill through the mark with our drill, and you're done! Use an object to keep the cups at the height of your poultry's chest and beak. 4. DURABLE: Stronger, thicker plastic with a larger surface area that holds 50% more water. Perfect poultry drinking systems for chicks, chickens, ducks, quails, and turkeys.