For a dual-handle Aquasource kitchen faucet with spray hose, the following instructions will afford replacement of the diverter. These instructions specifically refer to the faucet illustrated at http://pdf.lowes.com/installationguides/6953123900358_install.pdf
, and the diverter identified as part RP70007 (item 14). Note the position of notches at the top of the diverter and around the rim of the base of the diverter, either of which can be used to leverage a tool to rotate the diverter out of position. Caution: The diverters on older faucets may be exceptionally brittle and thus very difficult to remove.
1. Using a pipe wrench or similar large-mouth wrench, unscrew the base of the faucet. Wrap the base with a cloth or other protective material to prevent scratching during the process of unscrewing. The base unscrews in a counter-clockwise direction.
2. With the base removed, remove the faucet. Note that a small amount of water may drain from the faucet when removed.
3. Removal of the base reveals the top of the diverter, which is a white, plastic cylinder approximately two inches long with copper stopper in the bottom. Insert a wide, flat-blade screwdriver across the notches in the top of the diverter - but be *extremely* careful. A faucet that has been installed for some length of time may have an exceptionally brittle diverter. If the upper shaft of the diverter breaks, a pair of needle-nose pliers may be used in the notches around the *base* of the diverter. Carefully rotate the diverter counter-clockwise to remove it.
4. Insert the new diverter and screw it into place in a clockwise direction. Apply a wide, flat blade across the notches in the top of the diverter to apply slight additional pressure to tighten the diverter just beyond hand-tightness.
5. Re-insert the faucet.
6. Screw the base back into position, tightening as necessary.
7. Test the operation of the diverter by operating the cold and/or hot water faucets, then the spray handle.