I would like to know it, sounds interesting.
I would like to know it, sounds interesting.
It works on the same principle as any gravity feed water-er .
COPIED:
Gravity and air pressure. Because of
gravity, the
water in the reservoir wants to flow out through the small opening in the “bowl” area but cannot because the pull of the
water creates a low pressure zone in the top of the bottle that counteracts it (it's like anti-
gravity!) by “sucking” the
water up.
The barrel that has a large and small bung is laid on it's side horizontally and slightly elevated above the drinkers maybe a foot or so . A 3/4" valve is placed in the 3/4" pipe opening that will be on the bottom . From there a hose or tubing is run to the drinker that has a connection for that hose or tubing .
That connection is at an elevation on the drinker that the desired water level will be . With the 3/4" valve at the bottom closed , fill the container with water . Garden hose or whatever makes you happy . Now screw the larger bung in the top opening to seal the barrel . It must seal completely . Open the valve and the drinker will fill until that small hole at the hose connection in it is covered with water just as the old galvanized water container does .
The same thing can be accomplished by setting a barrel in a large pan / container and punching a hole at the water level desired in the drinker but both bung holes being on top will need to seal . A wood plug in the small discharge hole will prevent water from filling the drinker while filling the container .
Moving on to multiple drinkers . Connect a many as desired in succession as long as they are all at the same elevation as the first . A nipple connection will be installed near the bottom of the 1st drinker to supply each consecutive drinker and all drinkers after will have a similar connection point near the bottom . The 1st drinker is the water level controlling master .
BTW , a 55 gallon drum will keep a sow and 8 pigs with drinking water for a week in warm weather .