The Burj Khalifa's water system supplies an average of 946,000 l (250,000 USgal) of water per day.At the peak cooling times, the tower requires cooling equivalent to that provided by 10,000 t (22,000,000 lb) of melting ice in one day. The building has a condensate collection system, which uses the hot and humid outside air, combined with the cooling requirements of the building and results in a significant amount of condensation of moisture from the air. The condensed water is collected and drained into a holding tank located in the basement car park, this water is then pumped into the site irrigation system for use on the Burj Khalifa park