I made a waterer similar to the Chicken Fountain (or i assume it is from the way i think the "Fountain" works)...I took a 4" PVC drain Tee, 5 feet of 4" ofPVC drain pipe, (3) 4" end caps, a toilet
pressure fill valve, and 6 Chicken Nipples...i also heated it with a 15 watt aquarium heater and a Thermocube thermostat.
I cut the pipe to 1 length of 1 foot and 2 lenghts of 2 feet...drilled in the Chicken Nipples on the bottom of the 2 footers and glued them to the Tee...capped the ends....I drilled the bottom of the Tee to accept the 7/8 fill valve inlet, and installed in in the bottom of the Tee...i added the heater to the bottom of the Tee and ran the wire up the 1 foot section and and thru the cap...glued the up right pipe to the Tee...DONT glue the cap on the upright pipe...you need to be able to access the fill valve and heater.....mount the unit high enough on the wall to let chickes reach the nipples...the waterline is attached at the base of the Tee with a hose or pipe....the unit seems to be freeze resistant except the water feed line has to be insulated...in colder climate use a hotter heater...the heater is plugged into a 110v outlet with a Thermocube set at on at 35 and off at 45 deg...i have underground water to the coop and the supply line is wrapped in insulation between the ground and the waterer
The waterer has no line pressure at the Chicken Nipples...it only has line pressure into the fill valve which will open when water level in the upright pipe drops...the valve can be adjusted from the top by removing the cap and turning the screw adjuster on top of the fill valve.
** The horizontal pipes can be made to any length and more nipples added for large coops....or made smaller...the upright pipe MUST be about a foot tall to make static water pressure to control the fill valve
Parts List:
Lowes:
24140 4" Drain Pipe, 10 ft length
24125 NDS 4" PVC Drain Tee
24132 NDS 4" End Caps (3)
246712 Plumb Pak Toilet Fill Valve
388536 16" toilet fill hose (3/8 - 5/8)
Ebay:
Chicken Nipples
HYDOR mini 15 watt aquarium heater
Thermocube TC-3 Thermostat outlet
teflon tape
pvc cement
strap/wire for mounting
3/4 Garden Hose to 3/8 NP adapter
I have it in PDF format if wanted...send me a message with an email and i will email the drawing and parts list
Total cost is under $40.00 for the unit with no heater...and $27.00 more with the heater and thermostat.