Step 5 · Clean Faucet Body and Purchase Replacement Part
After removing the old cartridge, look inside the empty faucet valve body. Use a clean rag, perhaps moistened with a small amount of white vinegar, to thoroughly clean the interior, removing any visible gunk, sediment, or mineral deposits. A clean surface is essential for the new cartridge to seal properly. Take the old cartridge you just removed to your local hardware or plumbing supply store. Show it to an associate to find an exact replacement part. This is the most reliable way to ensure you purchase the correct Replacement Faucet Cartridge for your specific faucet model.