I have low water flow from my kitchen faucet. However, both bathroom faucets have very high water flow.
I have verified all the shut off valves are fully open (bathrooms don't have shut off valves that I see) and all the aerators have been cleaned and put in vinegar overnight.
Also, I recently bought this house. I noticed very high water pressure from the outside hose. I bought a water pressure gauge and it was at 120psi. After reading about normal household pressures, I found the pressure reducing valve and turned it counterclockwise until the outdoor bib showed 60psi. This video I took is with the pressure at 60psi.
What would cause this large difference in water pressure?
Video: https://youtu.be/DpJPebfXhaI
The piece I took out from the back of the pull-out faucet. Went from 1 gpm to 1.5 gpm.
Best Answer
You should disassemble the kitchen faucet and inspect the temp/flow control valve assembly for debris/obstructions. It is common for debris to get knocked loose and flow downstream, causing problems like this. Your manipulation of the pressure regulator could have done it.
Another consideration: those bathroom faucets appear to be older and may not be of the "water saving" variety. The kitchen faucet seems new/modern and likely has water saving flow restriction, either the sort described by @Ed Beal or integral to the design of the flow control valve.