I have read a lot of the postings and think I know why my new faucet has very low pressure now. I installed the entire new kitchen sink/cabinet this past weekend. It worked fine until yesterday. When I first turn on the hot or cold, it has very little pressure. When I turn the sprayer on and then off, the faucet has good pressure. I think I have gotten some debris in it and the diverter is not going through it's full motion. I removed the spout and checked the O-rings and see the diverter down in it with a plastic part that is screwed into the brass with a black washer ans a brass nipple in the middle. The plastic piece has a six sided female hex shape to it, but I do not have anything to remove it with. Any help to see if I am on the right trial, or how to remove the diverter? :eek:

I can't pull up any information on a Aqua-Plumb faucet. If I give you my E-mail addy can you scan in the literature and send it to me? Regards, Tom

I would love to scan it for you. However it did not come with any paperwork. I have decided to go back to the surplus warehouse and see if they have any paperwork for the store or contacts with the company. I am going to try to tap off the sprayer and see if the pressure goes back to normal for the spout until I figure out how to pull the diverter valve out. I did spray some canola oil on the valve from the top and pull the nipple up and down to get some of the oil on the valve to see if it was stickking. No change.

Thanks...

CASE SOLVED... I replaced the Aqua Plumb with a Delta two handle faucet.
There is a minor problem very similar to a new post to the site. Here is the note from newbie,

"I have a Delta 2 handle 4 hole fixture with a sprayer.
When I turn the hot or cold water handle quickly; water pulsates and makes a 'BAM BAM' sound for a few seconds."

I am going to check the sprayer first and then see why it is thumping/pulsating...

Thanks to everyone for the ideas..