A new problem has cropped up in our plumbing. It only seems to affect the sink in our upstairs bathroom. The water pressure has begun fluctuating from higher-than-normal to almost-nothing. Often times if the pressure is low, turning off the faucet and then turning it back on will bring the pressure back up. The problem is most pronounced on the cold side, though I see it a little bit on the hot.
Is this an issue with the faucet or perhaps somewhere further down the line?
FYI, It's an older home with mostly copper pipe & city water.