The present invention is an automatic chicken waterer within the pet feeding and watering field of inventions. The present chicken waterer is an improvement on automatic chicken waterers by enclosing the water inside a vertical reservoir, and automatically refilling the small volume with a commercially sourced combination float/fill valve that is connection directly to a pressure source. Water is automatically maintained inside the enclosed vertical reservoir by the construction of the assembly0′-. Simplicity in this invention is the compact package construction, with a connection to a constant pressure source, without additional pressure regulation or flow control components. The relatively small reservoir is plumbed to feed multiple poultry nipples spaced sufficiently to allow multiple users concurrently. The semi sealed, frequently refilled reservoir provides fresh and hygienic water to users
