Easy to install, just screw the Tri Pen Waterer to the wall or rail.
Position the drinking hole at around 70cm so the calves can pop their heads straight in.
The float valve has a 40mm riser to easily connect the trough to your water supply and is rated to pressure up to 100psi.
The float valve is set to 20L. If you see the trough is over filling you can adjust the valve with a screw driver.