We just got a new water heater, and since it was installed, we've lost pressure in the kitchen faucet (two handle type; unknown brand came with the house). The pressure is equally poor with both hot and cold, and the attached sprayer has normal pressure like before; no problems with other faucets in the house either. I've cleaned the aerator, and pressure was still just as poor even without it attached.

My guess at this point is a chunk of mineral deposit or similar, but I haven't worked on a sink before so I don't know how to get it out. I'm hoping not to have to call the plumber again; after the water-heater meltdown, it's getting expensive. ^_^;

Anything to try that you can walk a layman through?

FITS... both hot and cold... huh? I guess I would start by shutting off hot and cold water supplies to faucet, then I would remove the handles (allen wrench (look for hole in sides of handles) or screwdriver (look for screw under a cap on top of handles)). Then back of the nut and remove the stem assembly... then with a cloth over top of opening (and a friends help)... pulse the water on/off and see if you can flush the line (check stem assembly too, of course).

If this suggests good pressure afterwards, replace the stem assembly, turn on water and try that handle to see if that side is fixed... if it is... repeat for the other side.

However, like I said, to see a two handle faucet clog up on both sides (and no where else) is rare.

One more thought is if you can remove the spout itself... sometimes can unscrew top nut/cover/cap and with a twisting and pulling up motion (be gentle... long lever arm) and release the spout itself. Then check all that you see... bet problem is in here.

Only other thought is that you may be having trouble with a concealed vacuum breaker in the faucet... but I do not think I have ever seen one on a two handle faucet (and usually leaks pretty good if present).

Try what I suggested and see what happens... if that does not do it come back and check the page... I am sure some of the more experienced service plumbers may have another idea or two. GOOD LUCK!

If my answer helped, please RATE THE ANSWER below. Thank you.

I got the spout off, but didn't find the blockage.

I can get the handles off and the collar at the base of the handles, but how do I remove the stem after that?

SHould be a nut that needs to be loosened.. then will just pull up and out.