Abstract: The invention relates to a waterer to be mounted on an animal housing facility, which is provided with an essentially vertical feed delivery pipe (4), a vertical water pipe (2) and at least one water valve (3) fitted on the water pipe (2). It is characterised by a mounting unit (5), at least parially surrounding the feed delivery pipe (4), which can be firmly clamped to the feed delivery pipe (4), and a water pipe holder with a strap (6) and an angled leg (7) provided on the mounting unit (5), where the water pipe (2) lies against the strap (6) and the leg (7) in height-adjustable fashion, and with a height adjustment clamp (8) which surrounds the water pipe (2) and is connected to the strap (6) and the leg (7), with which the strap (6), the leg (7) and the height adjustment clamp (8) can be clamped against the water pipe (2).