Does this need to be attached to a tap or can I draw water from a bucket?

The mist nozzles need water pressure (around typical hose pressure) to spray. A bucket doesn’t create pressure, so the water won’t mist. People who try a bucket setup have to add a small pump to push the water into the tubing. Otherwise, the intended setup is simply: Outdoor faucet → garden hose → misting kit → fan. Thanks