I have double faucets Hot & Cold) in my bathroom. After the hot side water flow was very low before changing out the valves. But after changing the, The water flow through both sides is barely beyouns a trickle. I Shut off the water to the sink on the other side of the bathroom to see if the flow would increase on the other side. There was no improvement.

Can you direct me topotential causes?

So is the hot and cold flow poor now? If so, I would suggest removing the fuacer aeorator and cleaning or replacing it. Better now?