What water pressure is needed for the water dispenser and ice maker to work?

A cold water supply with water pressure of between 30 and 120 psi (207 - 827 kPa) is required to operate the water dispenser and ice maker. If you have questions about your water pressure, call a licensed, qualified plumber.

From the official Whirlpool Refrigerator (Owners-Manual-231850) manual, page 4

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