Mount the drum outside the shed in the shade, at a suitable height so the chicken drinker cup is correct for the birds. Drill a 25mm hile in the wall and screw the extension into the drum. 100mm is standard length, there are other lengths on request.
TIP: If you want to have different poultry in the pen, make the hole a slot. That way by varying the bricks under the drum you will vary the height of the cups.
If you have 2 sizes of birds in the one pen put the cup at the height of the big birds and put a perch for the smaller birds. This way the chicken drinker cups stay away from the litter in the floor, and then stay cleaner.
KIT 4007DSWALL. A single red lubing cup poultry drinker is suitable for up to 4 layers (supply your own drum with outlet).