The flow rate in my Moen Muirfield kitchen faucet and sprayer has really dropped off lately but there is no problem with water pressure anywhere else in the house.

Better Plumbing

• 33 Answers
• Posted on Dec 05, 2008

SOURCE: Loss of pressure in kitchen faucet - Price Pfister

Your problem is a simple one.

1. Turn off water to faucet.
2. Place a towel(s) in the base of the sink(s) to prevent any parts from going down drain.
   
3. Remove the handle to the faucet. (single handle only)
   
4. If not a single handle then remove spout from faucet.
5. If a single handle remove cap carefully and any loose parts.
6. Gently turn spout side to side while lifting to remove.
7. You will see a hole with a very small valve where the water comes out to the spout on the base of the faucet.

1. Remove this valve (which is a backflow preventer) and replace.
2. Reassemble and test.
   

SOURCE: Kitchen sink only running with the sprayer

It is hard to be certain without knowing the type of faucet, but if you have the type that has a single lever, it could be 2 things I can think of. If you have seperate knobs, I can only think of one. If you have the type with knobs, take the aerator screen off the end of the faucet, The screen may be plugged with saw cuttings of pvc or what ever type of pipe, or even the water saver orifice may be stopped up. If water runs freely with aerator off, you obviously have a problem there.
If you have the lever type, the ball valve can be in backwards, or even a little way off, and the water can not get to the faucet. I am guessing, the whole faucet assembly MAY be in backwards, but that too can usually be fixed by changing the ball around.
Hope this fixes you up!

SOURCE: need to fix a broken moen kitchen faucet

I had the same problem with my Aberdeen single lever with a pull-out sprayer a few months back. If you are the original owner of the faucet, it's under warranty; you shouldn't have to pay for any parts. Call: 1-800-BUY-MOEN (1-800-289-6636) and tell Customer Service what the problem is. They will send you the Handle Mechanism Kit at no charge. (Mine was part #93980 for my Aberdeen faucet, but yours may be a different part number.) It's tricky to take apart and get back together but my husband and I have zero plumbing experience and got it all fixed in about 20 minutes. The Moen.com website also has exploded parts diagrams of all their faucets so you can identify exactly what part you need, and they have some little videos and slideshows to show how to replace parts. If you can't reach Customer Service on the phone, you can go to "Contact Us" on their website and email them a description of your problem.

SOURCE: moen kitchen faucet set wsprayer can't shut sprayer.

there is always water pressure on the sprayer when water is on. if sprayer is leaking check if trigger is stuck in . best to just change the sprayer handle it comes off at the base of the handle

Mike Butler

• 6674 Answers
• Posted on Dec 29, 2009

SOURCE: moen single handle kitchen faucet, Hot water and

Hot water line connected to left side of faucet? Did you replace tap set, or just cartridge? Cartridge may be out 180 degrees.