So I made this feeder, 3 inch pvc pipe, 90 degree elbows. I ws all excited to put it in the coop! But the food wont go throught the elbows to the bottoms piece....What did i do wrong? Hubby thinks i need a bigger pvc pipe, like a 4 inch. Any thoughts????? ( i really like the concept, i have been pouring food through the holes and so far the chickens arent spilling it all over!)! Here it is!