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!