I bought a 2 gallon Igloo cooler with spout thinking that it would be the best way to keep water cold in the summer. My thought was that I would take the spout off and sit it in a oil pan and have a gravity waterer. What I realized was that there was way too much water in the pan and that my 6 chickens wouldn't be able to drink it fast enough for it to get fresh cold water to come out. So second plan was to take the stopper part out of the spout so that it run freely and then place a bowl under the spout. Didn't work. So then I figured out a way to insert a straw in the spout opening because I couldn't find any tubing and my thought was that once the water level reached the straw it would stop just like in the gravity fed waterers. The water didn't stop. I tried putting in a rubber piece with a small hole to reduce the pressue and that didn't work. What am I missing? I can't spend a lot of money on it and I have damaged the cooler where I cannot take it back to the store now. Would love some suggestions. Thanks