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Fix a sprayer that leaks

We'll shut off the water, locate the leak—hose, O-ring, or diverter—and replace the faulty part, or tell you when to call a plumber.

Troubleshooting · Home plumbing
15–40 min
What you'll need
  • Replacement sprayer hose (match length and connection type)
  • Replacement O-ring (match size at spray head)
  • Silicone grease (for O-rings)
  • Adjustable wrench or pliers (for connections)
Step 1 of 8

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Steps

Goal: Locate the leak, shut off the water, then replace the hose, O-ring, or diverter.

  • Run water through the sprayer and watch for drips. Check the hose, the head connection, and whether flow switches correctly between spout and sprayer.
  • Good: You have identified the leak location. Proceed to Shut off the water.
  • Bad: Cannot locate—check all connections with the water on (and a towel ready).

Shut off the water

Goal: Stop water flow before disassembly.

  • Turn both supply valves under the sink clockwise until they stop. If stuck, shut off the main house valve.
  • Open the faucet and sprayer to release pressure. You should see the flow stop and the lines run dry.
  • Good: Water is off. Proceed to Hose path, O-ring path, or Diverter path based on where the leak is.

Hose path

Goal: Replace a damaged sprayer hose.

  • Inspect the hose for cracks, kinks, or bulges. Disconnect the hose at the faucet body and at the spray head.
  • Pull the hose through the faucet body. Install a replacement hose that matches the length and connection type.
  • Reconnect both ends and turn the water on slowly. You should see no leaks.
  • Good: The hose is replaced and the leak stops.
  • Bad: Still leaking—check the O-ring at the head or the diverter.

O-ring path

Goal: Replace the O-ring at the spray head connection.

  • Remove the spray head from the hose. Inspect the O-ring for cracks, flattening, or wear.
  • Replace with a new O-ring of the same size. Lubricate with silicone grease. Reconnect the spray head.
  • Turn the water on slowly and test. You should see no leaks at the head connection.
  • Good: The O-ring is replaced and the leak stops.
  • Bad: Still leaking—check the hose or diverter.

Diverter path

Goal: Clean or replace the diverter so flow switches correctly to the sprayer.

  • The diverter is usually inside the faucet body or at the base of the spout. When you pull the sprayer trigger, flow should go to the sprayer, not the spout.
  • Consult your faucet manual or search “[brand] [model] diverter replacement” for disassembly steps. Remove the diverter, clean mineral buildup, and inspect for worn seals.
  • Replace with a matching part if available. If the diverter is integrated into the faucet body and cannot be replaced, call a plumber or consider a new faucet.
  • Good: The diverter directs flow correctly and the sprayer works without leaking.
  • Bad: Diverter is integrated—call a plumber.

When to get help

Call a plumber if:

  • The supply valves are stuck and you cannot shut off the water.
  • The diverter is integrated into the faucet body and cannot be replaced separately.
  • The faucet body is cracked.
  • You have replaced the hose and O-ring and it still leaks.

Verification

  • No drips from the sprayer hose, head connection, or diverter area when the sprayer is off.
  • When you pull the sprayer trigger, flow goes to the sprayer and the spout stops (or reduces to a trickle).
  • No leaks at any connection when the water is on.

Escalation ladder

Work from the device outward. Stop when the problem is fixed.

  1. Locate the leak Identify whether the leak is at the hose, head O-ring, or diverter.
  2. Shut off water Turn off supply valves and drain the lines.
  3. Replace hose or O-ring Replace damaged hose or worn O-ring at the spray head.
  4. Check diverter Clean or replace the diverter if flow does not switch correctly.
  5. Call a plumber Integrated diverter, cracked body, or leak continues after repair.

What to capture if you need help

Before calling support or posting for help, have these ready. It speeds everything up.

  • Faucet brand and model
  • Leak location (hose, head, diverter)
  • Parts already replaced

Where does the sprayer leak?

Run the sprayer and watch for drips. Check hose, head connection, and diverter area.

Run water through the sprayer. Hose: leak along the hose or at hose connections. Head: leak where the hose connects to the spray head. Diverter: water flows from both spout and sprayer, or sprayer has weak flow. Pick the path that matches.
Question

Where does the sprayer leak?

Continue

You can change your answer later.

Are the supply valves off?

Shut off hot and cold under the sink before disassembly.

Turn both supply valves clockwise. Open the faucet and sprayer to drain. Good: water stops. Bad: valves stuck—shut off main house valve or call a plumber.

Yes No

You can change your answer later.

Is the leak at the hose or at the head/diverter?

Hose: crack or kink along the hose. Head: leak at spray head connection. Diverter: flow from both spout and sprayer.

Hose: leak along the hose or at hose connections—replace the hose. Head or diverter: leak at spray head connection (O-ring) or flow does not switch (diverter)—proceed to next step.

Hose Head or diverter

You can change your answer later.

Is the leak at the head O-ring or the diverter?

Head: drip where hose connects to spray head. Diverter: water from both spout and sprayer.

Head O-ring: Replace the O-ring at the spray head connection. Diverter: Clean or replace the diverter. If integrated and cannot be replaced, call a plumber.

O-ring Diverter

You can change your answer later.

Replace hose and test

Disconnect the hose at the faucet and spray head. Install a replacement hose that matches length and connection type. Reconnect and turn water on slowly. The leak should stop.

Done

Replace O-ring and test

Remove the spray head from the hose. Replace the O-ring with the same size. Lubricate with silicone grease. Reconnect and test. The leak should stop.

Done

Replace or clean diverter and test

Remove the diverter per your faucet model. Clean mineral buildup or replace with a matching part. If the diverter is integrated and cannot be replaced, call a plumber or consider a new faucet.

Done

Call a plumber

Call a plumber if: the supply valves are stuck; the diverter is integrated and cannot be replaced; the faucet body is cracked; or you have replaced the hose and O-ring and it still leaks.

Done

Reviewed by Blackbox Atlas

Frequently asked questions

Why does my sprayer leak?
Usually a cracked or kinked hose, a worn O-ring where the head connects, or a faulty diverter that does not fully switch flow between spout and sprayer. Shut off the water and inspect each connection.
Can I replace just the sprayer hose?
Yes. Most sprayer hoses connect at the faucet body and at the spray head. Shut off the water, disconnect both ends, and install a replacement hose that matches the length and connection type.
When should I call a plumber for a leaking sprayer?
Call a plumber if the diverter is built into the faucet body and cannot be replaced, the faucet body is cracked, or you have replaced the hose and O-ring and it still leaks.

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