Run roughly 20ft of 1/2 inch pex from 3/4 cold line from main line in basement to out side basement wall drill though wood framing going out under sun room then drill though floor and come in with water line with ice maker shut off after installed will hook up supply line to ice maker Refrigerator with ice maker in sun room customer would like to have water line ran in so they could use it With customer approval Ron roughly 20 feet of half inch pecks pipe from cold water main in basement ceiling to under sun room then drilled though floor and installed ice maker valve after installed turned water back on to home and found no leaks