I have good pressure from the faucet but only about 1/5 of the pressure in the sprayer head. I thought the sprayer head might be clogged so I soaked in white vinegar and brushed the holes. Still the same. I unscrewed the sprayer head and the water coming out of the sprayer tube is not very hard (low pressure), however, the water from the faucet does stop completely and has good pressure. So, I am confused. It appears the diverter is working as it stops the water faucet completely but the water with or without the head screwed on has no pressure. There are no kinks in the line under the sink and it has a standard loop.

Could the diverter still be the problem by not directing the full water pressure to the sprayer? I would have assumed it was bad had it not cut off the faucet while pressing the sprayer but it does indeed cut the flow out of the faucet completely.

One thing I discovered during several tests was when I pressed the sprayer head on and off the faucet started pulsating on one or two occasions, not every time. I just turned off the faucet and turned it back on and the pressure in the faucet was normal and when I press the sprayer the faucet stops and water trickles out of the sprayer.

Thanks in advance.