Simply disconnect cold water line from angle stop bottom or from faucet stud on top. Complete with cone-washer and seal. Screw the deliver-valve into the side of the water supply connector using 3 to 4 wraps of Teflon tape. Disconnect the water supply line from the cold water faucet underneath sink. Attach and tighten water supply connector assembly being careful not to pinch or crimp any tubing or water supply line while tightening.
Most sinks have an extra hole for the mounting of additional faucets, sprayers or soap dispensers.
If your sink does not have an additional hole, use the following procedure. Enough surface material must be removed to expose the base metal. Operate the drill slowly and carefully, especially when the drill is about to penetrate the metal. If necessary use a drop of two of oil in the hole. Repeat step 2.