Troubleshoot Leaking Delta Single Handle Faucet

My Bath Sink Single-Handle faucet leaks. This example is for a Delta Faucet Single Handle Bathroom Faucet.

Identify the area that is leaking. Then, find the solutions to that area below.

Note: The diagram below is a general representation of this faucet type showing common replacement parts. If you do not find the answer you need here, please use the Technical Document search to find maintenance instructions for your specific model.

Solutions
A.  Leaks from under the handle:
  • Replace Ball Assembly (#1 in diagram — Repair part RP70 as shown for lever handles or RP212 for knob handles)
  • Replace Cam & Packing (#2 in diagram — Repair Kit RP61). For faucets purchased prior to 2007, please order RP1050 cap and RP61 cam and packing.
B.  Leaks from aerator:
  • Replace seats and springs (#3 in diagram — Repair part RP4993)
If leak persists:
  • Replace Ball Assembly (#1 in diagram — Repair part RP70 as shown for lever handles or RP212 for knob handles)
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