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Installed new pressure balance spool in a single handle shower, and now no pressure.

Posted by Tom Prendergast on

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Anonymous

  • 35 Answers

SOURCE: American Standard Cadet 2-handle tub & shower set-Model#3275 - low pressure output

When you installed the new tub faucet you probably turned off the water to that faucet of even the whole house. IF IT IS AN OLDER HOUSE, TURNING THE WATER OFF AND BACK ON CAN LOOSEN SOME DEBRIS IN THE WATER LINES THAT CAN FIND THEIR WAY TO YOUR NEW FAUCET. If there is a screen at the end of the water outlet it can be clogged with gunk. Uncrew the screen on the water outlet and clean. You may also want to flush out the hot and cold outlets by turning the water off, removing the cartigages and slowly let water flush them out. Then reassemble. Also when you have the tub handles out you can turn the hot and cold supply valves off and on a few times to loosen more debris if it exsists........Joe

Posted on Jan 04, 2009

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dragonsthatk

Albert Getty

  • 547 Answers

SOURCE: Shower handle will not shut off the valve...constant drip

little cover cap on center handle screw inside

Posted on Feb 21, 2009

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dragonsthatk

Albert Getty

  • 547 Answers

SOURCE: single lever moen shower valve -can't remove handle

if you have taken out screw then pull off if you have a handle puller use it

Posted on Feb 23, 2009

David Burk

  • 49 Answers

SOURCE: Moen shower/tub faucet

hi... yes that's a very common issue with moen "cartridges" -- it's very simple to fix..... grasp the handle and give it a gentle tug upwards when the water is on... if it retracts again, pull the handle out again and tug again but this time a bit harder. Not sure what causes this on new cartridges but it will fix your issue.

Posted on Sep 03, 2009

Randy Marshall

  • 349 Answers

SOURCE: Single-handle Glacier Bay shower faucet, hot/cold reversed

Behind the handle check to see if it has a dail to take out and replace at a different postion this will change the hot and cold. It a anti scald protection device. Don't remove cartridge just adjust dail.

Mark where you start and take out and move a 1/8-1/4 turn at a time and replace til temp desired. It has teeth like a gear you move to adjust temp.

Posted on May 16, 2010

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1 Answer

Moen single lever shower handle gives only hot water


A bit more information is needed; is this a Moentrol or a Posi-temp valve? You will need to shut water down to the shower. If it is a Moentrol, it could be an issue with either the cartridge or the pressure balancing spool. If you are at least getting water, I am going to assume that it is a Moentrol.
You will need to turn water off to the valve. Pull the cartridge and examine as to whether or not debris is blocking the supply holes of the cartridge. If your valve has built in shut off screws, you can slowly turn water on to clear any debris that may be inside the inlet port. I typically use a piece of PVC to go over the valve body so that water does not leak between the wall and the shower. Again, just turn water on enough to start it flowing.
If you do not notice anything amiss with the cartridge, it could also be the pressure balancing spool. If that is on your valve, it will be a flat head screw about the size of a nickel. Water will need to be off for the removal of the spool as well. Again, you will be looking for debris that is blocking water flow.
If this is an older Moen faucet, you may just want to replace the cartridge while you have it removed. If it is a push/pull, it is a Moentrol. If you have to turn the handle for water to come out, it is a Posi-temp. In my area, the cartridges run from $20-$40. However, Moen does offer lifetime on their cartridges. Lately, I have had a few more hoops to jump through to get the replacement cartridges from Moen, but they are still very pleasant to deal with.

Oct 16, 2014 | Moen & Posi-Temp Single Handle Shower Or...

1 Answer

What do the 3 screws on the moen L3175 shower faucet do?


Two screws hold the cover plate. Behind the plate on some models you might find 3 screws. The two smaller screws on the left and right side of the valve shut off water to the valve and the larger screw on the right side of the valve is the pressure balance spool. The spool is all one piece.

Sep 06, 2014 | Moen L3175 Legend One Handle Shower Faucet...

1 Answer

Can't get both hot water running at the same time. Delta Shower faucet


  • The spool and sleeve, the part of the Scald-Guard pressure balance valve that blends the hot and cold water, is not working properly. This can is caused by mineral deposits that build up over time resulting from hard water. To fix this, follow the steps below based on your model.
  1. Shut off water supply.
  2. There are two types of valves. Choose one or the other below depending on your series.
  • 1300-1400 Series: Remove handle.
  • 1700-1800 Series: Remove temperature knob, cover and handle.
  1. Twist and pull sleeve to remove it.
  2. Unscrew brass bonnet nut.
  3. Remove cartridge.
  4. Soak cartridge in a 50/50 vinegar and water solution for 24 hours to remove any mineral deposits.
  • **NOTE** Unless both hot and cold water supplies are turned on, the pressure balance valve will allow only a dribble of water to flow through the valve.
  • I have put up a picture to make disassembling it just that much easier for you.


ironfist109_98.jpg


Regards, Tony

May 23, 2011 | Delta & Single Handle Shower Faucet

1 Answer

I just installed a Moen shower valve Model 82910cbn. The cold water supply is on. The shower works when the cold and hot water is going to the valve, but when I turn off the cold water supply going into...


This is taken from the Moen manual. You can download it here:
http://www.moen.com/shared/pdf/instruction_sheets/ins162e.pdf
Balance Spool Maintenance
The precise and instantaneous pressure control illustrated has been
achieved through the balancing spool, which has been manufactured to
exacting tolerances.
During construction or valve installation, foreign material such as solder
flux, pipe cuttings sand, dirt or wood is unavoidably introduced into the
water system. Occasionally, however, rare, these foreign materials can
cause the balancing spool to become stuck temporarily between the
rough-in and trim-out operations. If this happens, it will be apparent at
the trim-out test, in that the valve will deliver only a small trickle of water
or it will deliver only hot or cold water. If this occurs, proceed as follows:
1. Make sure that both the hot and cold water service lines are ON. Also,
make sure that both screwdriver stop-check valves are open. The valve
WILL NOT OPERATE unless both supplies are ON.
2. If the valve still does not function properly, turn off both the hot and
cold supplies and remove the balancing spool, using a wide blade
screwdriver. The inner piston of the balancing spool should shake
back and forth freely. If this is not the case, jar the spool on either
end to remove the foreign material and free the spool. When the
spool is free, replace it; turn ON both water supplies and the valve
will function properly. If you are unable to free the inner piston,
replace the entire spool.

Oct 16, 2010 | Moen 3175 Legend One Handle Shower Faucet...

1 Answer

How to uninstall a Delta Shower Cartridge


remove set screw from handle, remove temperature and pressure balance cams and unscrew the chrome nut. Pull out cartridge and push in new one and in reverse, re-assemble.

Aug 14, 2010 | Delta & Single Handle Shower Faucet

2 Answers

Can't get cold water


the balancing spool sounds like it is frozen. You need to replace the cartridge. The spool needs to move freely to regulate the water coming through it to keep from scalding a person.

Nov 20, 2009 | Moen Posi-Temp Single HandleTub And Shower...

1 Answer

Moen-Single handle shower -only hot water comes in Serge


You need to replace the balancing spool in the valve, If you take the handle off and then the cover plate you will be able to see the valve. You will see the cartridge stem that the handle attached to...if you look to the side you will see what looks like a large slotted screw head.....you will need to remove that piece (called a balancing spool) and replace it. You may get lucky and be able to break lose the cylinder on the inside by tapping sharply straight down onto the slotted head. If you do this and the inside can now slide back and forth while shaking.....it should be ok....they get stuck with calcium. If not...then it needs replaced.

Oct 23, 2009 | Moen 3175 Legend One Handle Shower Faucet...

2 Answers

Moen single handle valve tub/shower


The Moen Posi-Temp Valve is a pressure balanced valve and when not used for long periods of time they can stick causing only cold or hot water to pass through the valve.
A New Posi-temp cartridges can be purchased at most plumbing supply houses or big box outlets such as Lowes or Home Depot.
As long as you had cold water before, a new cartridge will solve the problem. In the future it would be wise to occassionally operate the valve at least a couple of times a month in order to keep the pressure assembly from becoming lodged in position. Just follow the instructions included with the new cartridge on the proper removal of the old cartridge and the installation of the new cartridge. a little silicone grease inside of the valve before installing the new cartridge will also help.
Be sure that there is no particles of the old cartridge left in the valve.
sanray

Dec 27, 2008 | Moen & Posi-Temp Single Handle Shower Or...

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