Filtered drinking water can be added to a butler's pantry to provide fresh water for guests and reduce trips into the kitchen. Plumbing requirements include a potable cold water supply line connected to a water filtration system, a faucet and drain. While a 1/4-inch water supply line, generally used for ice makers, will work, a 1/2- inch supply line will provide better volume to fill water pitchers or glasses faster. Output flow also may be limited by the output volume of the water filtration system.
Even a small dinner party can quickly empty your refrigerator's ice maker. Installing a dedicated ice maker in the butler's pantry will allow for a more constant supply and provide ice at your fingertips. To connect an ice maker, install a potable water supply line and connect it according to ice maker directions. The specific size of line will depend on the specifications of the individual ice maker. The ice maker also will require a drain line.
A small food prep or bar sink can be helpful for washing fruit for drinks, rinsing dishes and utensils and washing your hands. Plumbing for a sink will include both hot and cold potable water supply lines, a faucet and a drain line. If you are planning to use this sink for food prep, a disposal is suggested.
Installing a dishwasher in the butler's pantry can help with clean-up and reduce unnecessary trips to the kitchen. Plumbing requirements include a cold water supply line and drain. The water supply line size will typically be 1/2 inch, but may vary by manufacturer.