My kitchen sink has a single lever (cartridge type?) faucet by Moen,
with a sprayer. When I turn on the water (with the lever at any
temperature position) there are loud thumping noises as the water flow
increases. The thumping coincides with the sprayer vibrating. This all
happens when I am not using the sprayer.

I suspect that sprayer diverter valve has gone south and needs
cleaning/replacing. How do I get to the diverter? Unfortunately I
cannot find the faucet model number. Thanks!

Melissa Wright wrote:
My kitchen sink has a single lever (cartridge type?) faucet by Moen,
with a sprayer. When I turn on the water (with the lever at any
temperature position) there are loud thumping noises as the water flow
increases. The thumping coincides with the sprayer vibrating. This all
happens when I am not using the sprayer.

I suspect that sprayer diverter valve has gone south and needs
cleaning/replacing. How do I get to the diverter? Unfortunately I
cannot find the faucet model number. Thanks!


I agree, sounds like diverter. Moen used a couple of different
designs. To get to it, the entire spout has to be removed.

You might check their site to see if there is info.
Most models have excellent warranty service where they will
send you the part.
http://www.moen.com/Consumer/product...tion/index.cfm

Jim

Speedy Jim wrote:

Melissa Wright wrote:
My kitchen sink has a single lever (cartridge type?) faucet by Moen,
with a sprayer. When I turn on the water (with the lever at any
temperature position) there are loud thumping noises as the water flow
increases. The thumping coincides with the sprayer vibrating. This all
happens when I am not using the sprayer.

I suspect that sprayer diverter valve has gone south and needs
cleaning/replacing. How do I get to the diverter? Unfortunately I
cannot find the faucet model number. Thanks!


I agree, sounds like diverter. Moen used a couple of different
designs. To get to it, the entire spout has to be removed.

You might check their site to see if there is info.
Most models have excellent warranty service where they will
send you the part.
http://www.moen.com/Consumer/product...tion/index.cfm

Thanks Speedy Jim. I did check that website and it offers information about
replacing the cartridge, but couldn't find any information on moen.com about
the diverter. It's just a basic one handle kitchen sink faucet, nothing
special about it. Underneath the faucet top it says "Caution use only #1225
Cartridge." I took it apart and removed the spout but didn't see anything
that looked like a diverter, although I didn't go as far as removing the
cartridge. I called up the Moen cust service number and provided the numbers
engraved on the back of the spout to the rep. She apparently couldn't find
specific information for this model (no longer made) and said that the whole
faucet probably has to be replaced to fix the diverter.

Melissa Wright wrote:
Speedy Jim wrote:


Melissa Wright wrote:

My kitchen sink has a single lever (cartridge type?) faucet by Moen,
with a sprayer. When I turn on the water (with the lever at any
temperature position) there are loud thumping noises as the water flow
increases. The thumping coincides with the sprayer vibrating. This all
happens when I am not using the sprayer.

I suspect that sprayer diverter valve has gone south and needs
cleaning/replacing. How do I get to the diverter? Unfortunately I
cannot find the faucet model number. Thanks!


I agree, sounds like diverter. Moen used a couple of different
designs. To get to it, the entire spout has to be removed.

You might check their site to see if there is info.
Most models have excellent warranty service where they will
send you the part.
http://www.moen.com/Consumer/product...tion/index.cfm


Thanks Speedy Jim. I did check that website and it offers information about
replacing the cartridge, but couldn't find any information on moen.com about
the diverter. It's just a basic one handle kitchen sink faucet, nothing
special about it. Underneath the faucet top it says "Caution use only #1225
Cartridge." I took it apart and removed the spout but didn't see anything
that looked like a diverter, although I didn't go as far as removing the
cartridge. I called up the Moen cust service number and provided the numbers
engraved on the back of the spout to the rep. She apparently couldn't find
specific information for this model (no longer made) and said that the whole
faucet probably has to be replaced to fix the diverter.


Bummer. If you're not in the mood to replace the faucet
ask at HD or a hdwr store for diverter parts they have for
your model.

Or:
http://www.plumbingsupply.com/images/moenkitchen.jpg

http://www.plumbingsupply.com/moen.html


Jim