Making this Automatic Chicken Feeder was overall a very easy project and required only a few supplies.  Once you find the supplies assembly should take less than an hour.  The large feeders hold about 12 cups of feed and the smaller feeders I use for oyster shell and grit. To make a large feeder you need: 1 4in PVC Wye fitting 1 4in PVC pipe about 24in long 1 4in PVC pipe about 6 in long 1 4in PVC cap fitting 1 4in knock-out or separator piece PVC primer and cement   Steps to making an Automatic Chicken Feeder: 1.  Lay all the pieces out in the order shown 2.  Cement…