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Have a single handle kitchen faucet. Hot water pressure works fine, but cold water has very low pressure (almost a trickle).

Things I have tried:

  1. Cleaned the aerator (nothing blocking it)
  2. Changed the cartridge (still same issue)
  3. Verified the microscreens in the flex hose lines were not trapping any debris
  4. Flushed both lines (unhooked hose from stop, removed microscreens, turned faucet on to mixed position in hopes something was clogging it... repeated for both hot and cold hoses. No sediment or any debris)
  5. Replaced the the entire fixture, repeated steps 1 through 4. Same issue.
  6. Called in a plumber - they said the issue was that the flex hose was in a loop and was causing the loss in pressure. Not sure if this made too much sense to me since it seemed to be a gradual sweep (about a 4" diameter loop) and the loop was attached to the hot water stop (which has no issues with pressure). Their recommendation was to get a new faucet with shorter lines...

Temporary Fix

Played around with it some more after the plumber left and noticed that I get my cold water pressure back for a limited time if I do the following:

  1. Open the faucet to the cold water side (water trickles)
  2. While the faucet is still open, I close the cold water valve under the sink completely
  3. When I re-open the cold water valve, the cold water pressure is completely back to normal
  4. This temp fix only lasts for maybe a couple hours at best and then it reverts back to a trickle

Short of going out and buying yet another faucet (with shorter lines apparently)... was wondering if anyone had any other ideas here.

EDIT - RESOLUTION This was lodged behind the cold water shutoff valve. enter image description here

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    Feels like you might have crud in the angle stop. Commented Jul 6, 2022 at 12:32
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    Think the problem might be at the shut off valve or further back in the pipe. Is it only one faucet or others in the house? If just that one then problem area should be limited from the shut off valve to where that line tees off the cold water line. Think your plumber might not know that much, a kink in the hose yes, a soft loop no.
    – crip659
    Commented Jul 6, 2022 at 12:33
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    I agree with @crip659 that the shutoff valve could be the problem. Try shutting off house water and remove the valve stem for the shutoff valve and flush it out.
    – JACK
    Commented Jul 6, 2022 at 13:32
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    @crip659 I was thinking that closing the valve dislodge something that reformed after it was opened.... and yes, could definitely be before the shutoff.
    – JACK
    Commented Jul 6, 2022 at 14:03
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    Now just tell us how did that get in there
    – Traveler
    Commented Jul 6, 2022 at 16:55

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