Moen "chateau" faucet issues

Hi all
I am messing with TWO Moen "Chateau" single handle faucets with side sprayers, with what I believe are similar problems. One I bought new at my house, and was handed it in a box when I went to clean out because "the diverter was bad and I had a handyman replace it" (as I was told. I was not present to observe exactly what prompted the replacement.) The other is installed in my friend's house.
The one that is still installed has had problems with the side sprayer. Based on the deposits that I see on it, they have hard water. The issue is that the sprayer does not stop spraying when you release the trigger. I took the sprayer from the old faucet from my house and installed it on his hose and that one works better, but it still dribbles water when the trigger is released, it does not completely shut off. This leads me to believe that the diverter valve is not functioning on THIS faucet as well. Currently they've been using it with the sprayer just left hanging in one bowl of the sink, but that to me is an inelegant solution and I'd like to fix it.
Does this sound reasonable? Both faucets failed quite "young," mine maybe two years after installation, my friend's less than a year.
I do have both of the side sprayers currently soaking in glasses full of vinegar right now in an attempt to free them up...
nate
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Nate Nagel wrote:

Can you hear diverter vale moving in/out with snappy aound when sprayer is used? Sounds like diverter problm. There is better one made of metal than cheap plastic.
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On 03/12/2011 02:53 PM, Tony Hwang wrote:

Nope, I can't. Sprayers don't work, but when placing thumb firmly over end of hose (with sprayer removed) I can't hear it. I know the sound you mean. That is why I suspected that in addition to the sprayers being limed up that the diverter might be as well, but I don't know how to remove/clean it. My main prob right now is I haven't a clue how to start taking the thing apart to even investigate.
BTW I'm pretty sure that my friend's faucet is a 7434; "mine" is a 7430 (reading off the box.) only difference appears to be configuration of incoming lines from below and placement of sprayer.
nate
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wrote:

When you went to clean out???

A tenant told you this?

**The dribbling woudl be because the sprayer valve is bad, no? Not the diverter valve. If so, they sell heads separately. All white, all black, black with silver trim, and one other, maybe all silver. Six dollars at HD for a couple of those styles. Other styles at Ace, but the one at HD matched my old one perfectly. (mine was not coming out the opening but dribbling down from under the sprayer, down the hose, and I had to pull the hose out to keep it from going under the sink. Oh yeah, that's what you're talking about.
Isn't the dirverter valve under the main faucet, not the on/off valve in the sprayer? I thought the diverter valve was meant, when the sprayer was on, to stop any flow of water to the faucet itself, to increase pressure to the sprayer, which would otherwise be less than half of the original pressure.
Come to think, it wasn't the on/off valve that leaked. It was the connection to the hose. There were two washers and a small metal ring to hold one or both washers in place. The big black washer was soft and should have worked when the sparyer halves were tightened together, but the big black washer on the replacement was even softer, and that made the difference. If I had a big black washer like that, or even one I think with a bigger center hole, that woudl have been all I needed, but if I do have anything like that, it's probably 10 or 20 yeasrs old. Maybe they sell them separately, but I'm happy to have the thing fixed and didn't understnad the problem when I was at the store.

Me too. But I don't even know where they live.

If it's leaking betwween the sprayer and the hose, it's leaking, not clogged, and your vinegar is meant to remove deposits in the sprayer, not where it attaches to the hose. Wait, yours is only one year old? If it's the wwasher it should still be soft, maybe you can scrape the deposits off the faces of the washer with a pen knife, any sharp non-serrated knife, if there are any.
You never said where it was leaking.

The talk about the noise of the diverter valve is distracting you fronm the leak, which is your friend's problem. well, if the sprayer never totally closes, maybe htat's why the diverter doesn't make that noise. Holding your thumb over the hose totally closes the sprayer output. Letting go of the sprayer trigger with the leaky washer doeesn't.
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On 03/12/2011 03:00 PM, mm wrote:

My ex - she stayed in the house a little longer than I did.

It's dribbling out of the sprayer, not down the hose.
I disassembled the one from "my" faucet (which was actually on my friend's faucet; he borrowed it to try to get his working) and found a string of something, looked like Teflon tape, fouling the seat. Unfortunately "his" sprayer, which was apparently a slightly different design, was not able to be disassembled to the point that I could disassemble the actual valve part. However, after soaking for a couple hours, it's now working.

<snip>
I believe so, yes, and I believe that it is limed up as well. Now that I've got a reasonably functional sprayer on it, I find that I don't hear the "snapping" noise that Tony describes, and water still dribbles out of the aerator while using the spray nozzle. How the heck do you disassemble this thing?
this was all I could find:
http://www.moen.com/shared/pdf/7430pt.pdf
which isn't really much help... it appears that step 1 is to remove a plug in the handle, and I can't even see how to get that out without destroying it... and the diverter is just shown floating in space without any indication where it is located...
maybe I'll try disassembling "my" faucet first just so I can see what the hell is going on in there, that way if I destroy it I at least won't have destroyed an installed, functional faucet...
nate
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wrote:

Ah.

I coudlnt' get mine apart either, so far. It was schelded for destruction/examination but now it occurs to me, if it only leaked because of that washer, maybe I shoudlnt' destroy it.

Wonderful. I don't mind being wrong.

I see.

"It was necessary to destroy the village to save it."

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On 3/12/2011 2:26 PM, Nate Nagel wrote:

Mine acted similar. I took it apart and lubed the O-rings with plumbing lube and it works great.
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