The foundation of a sink sprayer holds the sprayer in place when it is not in use. Over the years, discoloration may occur because of hard water exposure or substances used to clean the sink. Fortunately, home improvement centers and plumbing suppliers stock various kinds of bases, which means you don’t need to replace the entire sprayer. You should get rid of the sprayer foundation and use it as a reference when purchasing a replacement to match the type, color and finish.
Turn off the shut-off valves supplying cold and hot water to the faucet from underneath the sink.
Loosen and remove the sprayer hose from the faucet nipple located under the sink by means of a set of adjustable pliers or a basin wrench.
Remove the sprayer and hose by pulling it from the sprayer base in addition to the sink.
Utilize the basin wrench or adjustable pliers to loosen and remove the mounting nut and friction washer from the sink sprayer’s tailpiece located under the sink.
Remove the sprayer base from the surface of the sink.
Wash across the sprayer base opening with an applicable household cleaner before inserting the new sprayer base.
Apply a 1/4-inch cord or bead of plumber’s putty around the bottom border of this new sink sprayer foundation and insert the foundation into the sink opening.
Secure the tailpiece into the sink from underneath by first sliding on a friction washer and then threading on the mounting nut until snug.
Utilize the basin wrench or adjustable pliers to tighten the mounting nut an extra quarter of a switch.
Slide the end of the sprayer hose which connects to the faucet through the sprayer base from the surface of the sink.
Thread the nut on the end of the sprayer hose by hand onto the faucet nipple till snug.
Utilize the basin wrench or adjustable pliers to tighten the sprayer hose nut an extra quarter turn.
Remove extra plumber’s putty from across the sprayer foundation in addition to the sink with your finger.