In the old days also water wheels and manual labor were needed to lift water from wells, rivers, canals and ponds to agricultural land. Foot-powered pumps, using a 2000-year-old design doesn't require a lot of energy and draws water in a sustainable way so as not threaten groundwater supplies. Foot-powered pumps are still used nowdays in different asian lands. What works, works. Have a look at our wide range of valves and pipe accesories at: www.davincivalves.com Antiguamente

CHINESE ANCIENT INVENTIONS FOR WATER RECOLECTION: JIEGAO AND HÚDOU The shaduf in China is known as Jiégāo and was locally called Diaogan, as well. According to the Agricultural Books of Ancient China written by Wang Zhen (1271–1368), Yi Yin invented the Jiégāo in the first year of the Shang Dynasty (ca. 16th–11th centuries BC). Hùdou was another common water lifting device in ancient China. It consists of ropes and a container. Two ropes are fastened symmetrically at the top

In spite of the challenges posed by the COVID-19 pandemic, many companies presented their products at WieTec 2020 in Shanghai with the aim of expanding their business. The 13th edition of WieTec was held from August 31st to September 2nd at the Shanghai National Exhibition and Convention Center. Over the three days, the event gathered ​​2,200 exhibitors and attracted ​​80,297 visitors from all over the country. The exhibition included ​​200,000 square meters of exhibition spa

THE ANCIENT MAYA CHULTUNS FOR WATER STORAGE (Read in 1 minute) The Ancient Maya Population in the region faced the problem of a lack of water, rivers, springs and wells. For their watter supply, they constructed Chultuns (Cisterns) and Aguadas (Hollows) in the ground to collect rainwater. Most chultuns were bottle-shaped underground storage chambers, carved out of the relatively soft limestone bedrock. They were often plastered with a thick coating of lime stucco. Archaeologi