My water is being diverted 100% to sprayer. It's a Moen. Can I replace a diverter, or do I need a completely new faucet? By the way, I took the sprayer apart and it doesn't want to go back together.

What's the model Number of your faucet, did it happen by it self or you have done any work on the faucet?

I don't know the model number. Can you tell me where it would be located?

I have taken the sprayer apart. That seems to have caused the problem. Now, I can't get the sprayer back together.

I HAVE tried simply pressing my thumb against the stream of water, to see if it will divert back to the main faucet, but it doesn't help. It still only comes out of the sprayer hose and nothing out of the main faucet. I can send a photo of the faucet and/or sprayer, if that would help.

My water is being diverted 100% to sprayer. It's a Moen. Can I replace a diverter, or do I need a completely new faucet? By the way, i took the sprayer apart and it doens't want to go back together.
You may replace the diverter,(see image) by first shutting off the water, opening up the faucet, (see image) and lifting out the spout. While you have the faucet apart turn the water back on for a minute to flush out the supplies and valve body. Ifthe spray head is a problem simply purchace a replacement at your local hard ware store and attach it to the hose.Good luck, Tom