Dr. Seyed Hassan Amin orchestrated the debate on the water problem and recalled the traditions of Tirgan.

Tirgan is a mid summer Iranian festival, celebrated annually on Tir 13 (July 2, 3, or 4). It is celebrated by splashing water, dancing, reciting poetry, and serving traditional foods such as spinach soup and sholezard, a sweet dessert with rice and saffron. The custom of tying rainbow-colored bracelets on wrists, which are worn for ten days and then thrown into a stream or into the wind, is also a way to rejoice for children and adults.

Tirgan is an ancient Iranian tradition which is still celebrated in various regions of Iran. It is widely attested by historians such as Gardezi, Biruni, and Masudi, as well as European travelers during the Safavid era.

 Statue of Arash the Archer at the Sa'dabad Complex, Tehran:

The celebration is dedicated to Tishtrya, an archangel who appeared in the sky to generate thunder and lightning for much needed rain.

Legend says that Arash the Archer was a man chosen to settle a land dispute between the leaders of the lands Iran and Turan. Arash was to loose his arrow, on the 13th day of Tir, and where the arrow landed, would lie the border between the two kingdoms. Turan had suffered from the lack of rain, and Iran rejoiced at the settlement of the borders, then rain poured onto the two countries and peace was restablished between them.