Replace a Sisco Faucet Cartridge
Sisco faucets are not as commonly used as other brands. They have replaceable cartridges, much like the ones found in Moen faucets. When the faucet leaks, you can usually repair it by removing the cartridge and replacing worn rubber seals, cleaning the cartridge, or replacing it altogether. The working parts of a Sisco cartridge are ceramic, but the body is brass. It screws into the valve seat, much like the stem on a simple-compression faucet.
Instructions
1. Turn off the water to the faucet. This is most easily accomplished by turning off the angle stops, which are the shut-off valves under the sink cabinet.
2. Pry off the cap on top of the faucet handle with a slot screwdriver. When the cap is removed, unscrew the screw holding the handle on with a Phillips-head screwdriver and remove the handle.
3. Wrap a rag around the nut under the handle to avoid damaging the finish on the faucet, then grip the nut with slip-lock pliers.
4. Turn the nut counterclockwise to loosen it. If it is difficult to turn, remove the rag and spray lubricant on the nut. Give the lubricant about 5 minutes to seep down into the threads. Replace the rag and try turning the nut again.
5. Finish loosening the nut by hand and pull the cartridge out. Take it to a plumbing-supply store to use as a reference for finding a replacement.
6. Insert the new cartridge into the valve seat and tighten it by hand, turning clockwise, until it won't turn any more. Finish tightening it with slip-lock pliers and a rag. Replace the handle, replace and tighten the screw that holds it, then snap the cap back in place.
Tips Warnings
You only need to replace the cartridge if it is cracked, the internal seals are broken, or it is excessively corroded. If it is simply dirty, you can often clean it sufficiently with a garden hose or by soaking it in vinegar to dissolve any mineral deposits.
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