Question about Moen Lavatory Rough-In Valve with Drain Assembly 9000

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Moen 9000 rough in drain assembly installation

Drain assembly leaves a hole at top, obviously a place for water to flow out of drain into cabinet below.

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If I understand correctly,Your basin bowl does not have an overflow passage vent. You will need to puchase a different drain,tail piece, that does not have the side vent hole. 

Posted on Mar 11, 2009

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Dripping after water is shut off/how do i dismantel to check rings/gaskets

If you contact Moen ( ) they will send you a new cartridge free of charge and it will come with complete instuctions.

Mar 05, 2011 | Moen 1 Handle LavatoryWith Drain Assembly...

1 Answer

How do I repair a dripping Moen M4600 (1978) bathroom faucet? Looks like the Moen 1 handle 64621P that is pictured here. Thanks. Richard

First shut off water supply and remove cover on top of handle.They generally just snap in place so you can remove with screwdriver or knife point. Remove screw in center of handle and pull handle off. There is a copper retaining clip that holds cartridge in place. It has a small hole in the center on top that you can insert scratch awl or other pointed tool in and pull straight up to remove.You can try to grasp center stem of cartridge with pliers and pull up to remove. If the cartridge has not been changed for a long time it may be very hard to remove.
You are going to have to replace the entire cartridge so you should have one on hand and you can purchase a tool made especially to remove moen cartridges.Just follow direction that come with cartridge or tool and remove cartridge. I would use the brass cartridge as I have not had good results with the plastic ones. When you get old cartridge out I would use a small amount of faucet grease or petroleum jelly to lube o-rings and then reinstall new cartridge and clip,handle,screw,and cover. Good luck and thank you.

Dec 28, 2010 | Moen 1 Handle LavatoryWith Drain Assembly...

1 Answer

The hot side of my Moen 9000 rough-in assembly leaks from the faucet when the water is turned on underneath the sink. Possible solutions.


I'm sorry to hear you are having issues with you 9000 rough-in valve. You may need to replace the hot cartridge.

I recommend that you contact our customer service to see whether your product is under warranty. The number is 1800-BUY-MOEN. Hope this helps!

-Olivia from Moen

Dec 20, 2010 | Moen Lavatory Rough-In Valve with Drain...

1 Answer

How do you remove the cold water hand to repair dripping? moen 6410bn

should be able to turn the bottom part of handle and it will bring the handle up with it..the just turn the nut under to replace the cartridge

Dec 08, 2010 | Moen 2 Handle LavatoryWith Drain Assembly...

2 Answers

My newly installed pop up Moen drain included with my new Moen Adler faucet model CAL84502, leaks past the rubber gasket that holds it up against the basin overflow drain. What can I do to stop this?

Sorry to hear you are having problems with your drain Dave. It might be as simple as tightening the nut another 1/8th of a turn. You've got to be careful here as the plastic parts for the drain can easily break if too much force is applied. Hand tighten only.

If tightening it up doesn't work then disassemble the pop up and look at the rubber washer. See if there are any signs on the washer that might tell you where it isn't sealing against the underside of the sink. Check the sink to ensure it is not cracked or chipped around the bottom of the drain. If everything looks fine then reassemble the drain and look again for leaks. It's possible something could have become trapped between the washer and sink allowing a capillary action to let water escape at this point. If the problem persists try using a little bit of plumbers putty with the washer as there could possible be a defect in the porcelin or steel of the sink drain allowing water to escape. Let me know if the problem persists and we'll have another go at it.

Aug 11, 2010 | Moen 103459 Drain Pop-UP Plug

1 Answer

What valve system use ?

#9300 for mini widespread M-PACT model

#9000 for 8" widespread

What you have pictured is the 4" mini widespread

Nov 20, 2009 | Moen Trim kit for 2 handle lav with drain...

1 Answer


Get under the sink inside the cabinet to do this. First, take loose and remove the connection of the arm that goes into the drain tail piece. It is on the back side of the drain piece and connects to the rod that you pull up on the faucet when you close the drain. Next, loosen and remove the nut on the back side of the drain tail piece that holds the drain lever in place. When you remove this, it will allow the old pop up plug to be removed. You put the new pop up plug in by reversing the proceedure. Make sure the rod gets inserted into the new drain pop up and the nut is snug enough to make a water tight seal when you reassemble it. Reconnect the pull rod and you are done.

Oct 12, 2009 | Moen 103459 Drain Pop-UP Plug

1 Answer

Pegasus Push Button Vessel Sink Drain with overflow

Put plumbers putty around the flange that will be in contact with the sink. When you put it into the hole, try to line up the overflow as good as possible. The nut that goes onto the bottom (tailpiece) has a rubber gasket that will go between the nut & the sink. Adding some plumbers putty here won't hurt. After all is secure, just remove the putty that squeezed out from tightening.

Feb 21, 2009 | RTO W/ Overflow Chrome 1 5/8" Vessel Sink...

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