Q. "How do you remove the cartridge on the single handle control faucet?"
A. First, make sure your hot and cold water supplies are turned off. Take the handle off by unscrewing the set screw and pulling the handle straight up. Once the handle is removed you will need to remove the cap (also known as a bonnet nut) by unscrewing it counter clockwise. The cap can be very tight and difficult to unscrew and the use of a strap wrench can help you remove it without scratching or marring the finish. Now unscrew the plastic retainer nut. A 1-9/32" socket (available in the 5 Piece Socket Wrench Set) can be very helpful in removing the #931-900 retainer nut. After the retainer nut is removed, the cartridge can be pulled straight out. Once the cartridge is removed it is best to flush the lines before inserting the new cartridge.
Q. "How can I remove mineral deposits from my aerator?"
A. Remove the aerator by turning it counterclockwise. Soak it in vinegar overnight and flush it with water, rubbing it with a toothbrush if the deposits are stubborn.
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