This Corridor, which is pure and leads around all this, is within the wall, which is connected with the Pylon. It is 113 cubits long and 90 cubits wide, up to the small doors that are located in it on the right and left sides of the Pronaos. There are four doors in it. Details of the places on to which the doors open: one leads eastwards and is used by the Aqi-Priests when they come back from the Sacred Lake to perform their duty; it is used to bring out offerings released (for consumption), in order to hand them out to the overseers of the chapels of He of Dappled Plumage; another one, a miraculous work, leads to the Pure Well, to the Pure Magazine and to the Slaughterhouse of Horus of the choicest cuts of meat, to get fresh pure water for the temple, and for the divine offering to the Falcon at the appropriate time; two more (doors) open right and left, and they are sited in the Pronaos and lead into the Court of Offerings.
The Great Building Inscription of the Edfu Temple Translated by Dieter Kurth
About the Pure Hallway
The Pure Hallway is an open-air hallway located between the Enclosure wall and the original Naos of the Temple. Its walls are decorated with ritual scenes for the offering of the water and with the utterances for the consecration of the libation that occurs within the temple. This purified corridor was used to carry meat offerings and purified water to the individual chapels, as well as the ritual route for the senior w'ab - pure one to complete the daily offerings to Har - Horus. W'abw - Pure ones would carry a jar of qababwt - cold, purified water on sacred route, counterclockwise, from the Pure Well to the Room of the Nile, thus purifying the route within the temple. Carrying the qababwt occurred three times daily. first in the morning, second at midday, and third in the evening. Two w'abw performed the task, with one carrying the purified water, while the other preceded with burning frankincense, censing the water to keep it pure. 
