CHICAGO Every hour on the hour, the fountain's display shoots a stream of water 150 feet into the air. The display lasts 20 minutes.
Starting at dusk, that water display is accompanied by music and lights. The final display begins at 10 p.m.
The water displays are powered by three pumps, the biggest of which shoots up to 7,000 gallons of water a minute. Depending on wind conditions, the fountain uses approximately 14,100 gallons of water per minute during the major displays. That water is re-circulated at the base of the pool and only refilled when water evaporates or is lost due to wind.
The fountain has 134 jets:
36 jets point upwards from the top basin, including a central jet to produce a 150-foot geyser.
34 jets at the consoles.
12 jets in the upper trough that arc into the top bowl.
12 jets in the inner trough that arc into the upper trough.
12 jets in the lower trough that arc into the inner trough.
8 jets spout from the sea horses' mouths.
20 isolated jets.
The fountain contains 820 lights.
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