Thank you for your question, and I am sorry to hear that you are experiencing a leak from your Delta faucet. If the faucet leaks, we do recommend to flush the valve to make sure no debris is caught inside that maybe causing the issue. To flush: first tun the water off at your water supply. Remove the handle, remove the sleeve assembly, unscrew the bonnet nut. Pull the cartridge assembly straight out. The cartridge can be cleaned by rinsing this out thoroughly in another sink. Once everything is removed, turn the water supply back on. This will flush the water straight through the open valve body. Keep this on for a good 30-45 seconds. Turn the water off and reinstall parts. If this does not solve the issue, the seal kit, RP4993, may need to be replaced within the valve cartridge assembly. If you should need further assistance, please contact us back.
Date published: 2018-07-13