I am designing our coop and want to have the waterer to work in our 4 breeder pens and the layer coop. The coops will be side by side. The bucket will be 4' high, on top of the breeder pens. Will a normal bucket, 5 gallons, be able to supply three cochin bantams, 5 silkies, and 6 layers? If it only lasts a full day that is okay, but it needs to last a full day. I prefer it last longer, but it's all good. It's entirely too hot here, in the summer it gets to 100. In the winter we were thinking of using a fish tank heater in the bucket except for insanely cold nights (in the teens). Also, what nipples can I use with round pvc pipe? We have been unable to find square locally, and don't want to ship. TSC has been the only place we found the actual nipple waterers and they were the push in kind. Is that okay? Any advice is needed.