Model # 400ARP25

Internet #100554467

Store SKU #147966

null Universal Toilet Fill Valve
0039961000026

Universal Toilet Fill Valve

  • #1 best selling toilet fill valve in the world
  • Easy to install
  • Height adjusts 9 in. - 14 in.
$7.48 /each

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Product Overview

The Fluidmaster 400A Toilet Tank Fill Valve is the number one selling fill valve in the world. The 400A is adjustable in height from 9 in. to 14 in. to fit almost all toilet tanks. It also has an anti-siphon design to prevent contamination of household drinking water.

  • Replaces ballcocks
  • Refills quickly
  • Universal fit for 1 and 2 piece toilets
  • Corrosion-resistant material
  • Anti-siphon operation, code approved
  • Won't contaminate fresh water supply

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44 Questions225 Answers

Customer Questions & Answers

Universal Toilet Fill Valve
Universal Toilet Fill Valve

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This question is from Universal Toilet Fill Valve
 
12 answers

Did I ruin the fill valve by moving the lock ring?

This question is from Universal Toilet Fill Valve
Asked by
Karen
Seattle area
June 22, 2013
If I pushed up the lock ring and pulled the threaded shank completely out of the valve body but then reinstalled it and re-seated the lock ring, can I expect it to be OK or did I damage anything?
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Answers (12)

Asked by
Anaheim CA
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Home Improvement Profile: DIYer
June 1, 2016
Answer: 
Should be fine, because: I wasn't able to adjust the height by turning (un/screwing) the two parts as instructed, so I took it back to HD. The clerk did exactly as you did; just yanked the two tubes apart. We reassembled it, adjusted to correct height, installed it, and after 3 yrs, no problems.
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Asked by
Huntsville, AL, USA
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January 29, 2014
Answer: 
no you didnt damage anything as long as you place the lock ring back into position, you can expect it to perform exactly as it was designed to.
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Asked by
Tracy California
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Home Improvement Profile: DIYer
January 25, 2014
Answer: 
I believe if you can install the lock ring back and the valve is at the proper height. Remember the Center Line which is marked at the top of valve must be above overflow tube as with the rubber hose using the clamp. If this does not work a new valve cost about seven dollars.
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Asked by
Taylor, MI, USA
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January 14, 2014
Answer: 
As long as you do not crack the lock ring it should be okay.
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Asked by
New Castle, PA, USA
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January 14, 2014
Answer: 
NO...JUST RE-INSTALL MAKE CERTAIN THE RUBBER GASKET IS NOT BROKEN OR CRUSHED ADD SOME WATER TO THE TANK TO CHECK FOR LEAKS!.....
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January 14, 2014
Answer: 
Should be ok...
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Asked by
Lawrence, Kansas
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December 31, 2013
Answer: 
No. It will slide back in place.
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Asked by
Sandy Ut.
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October 30, 2013
Answer: 
If you put everything back the way it was, you should be fine.
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Asked by
Tooele, UT, USA
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October 23, 2013
Answer: 
I have never had a problem with the Fluidmaster. The product should be fine as long as you didn't break or strip any of the parts.
float levels are set according to tank capacity. So some adjustment might be required. I always make any adjustments after a test run.
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June 25, 2013
Answer: 
Fluidmaster instructs not to remove the lock ring. Fluidmaster would need to inspect the valve to determine whether it has been damaged or functionality has been effected. You are strongly advised to replace the entire valve.
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Asked by
Utah
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June 22, 2013
Answer: 
Not sure I can answer that but if it went together okay probably is okay. You maybe could test it before installing just to be sure by connecting it to the fill feed outside the toilet assuming you have a flexible hose??
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Asked by
Greensboro, NC, USA
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June 22, 2013
Answer: 
It should be Ok. Once you reassemble it, is it functioning correctly?
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This question is from Universal Toilet Fill Valve
 
11 answers

Why does my toilet run for 3-5 seconds every 5 minutes or so even when I don't flush

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Asked by
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September 26, 2016
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Answers (11)

Asked by
Iowa
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Home Improvement Profile: Professional
September 28, 2016
Answer: 
What your toilet is doing is what we call ghost flushing. It is almost always caused by the flapper. If you possibly can use the original flapper. Using a fit all flapper can cause the problem. Sometimes I run a new flapper under hot water to help it to seat. And sometimes they may need to seat in for a day or two. Make sure the seat is clean there can be parts of the old flapper stuck to it' Other Read More
What your toilet is doing is what we call ghost flushing. It is almost always caused by the flapper. If you possibly can use the original flapper. Using a fit all flapper can cause the problem. Sometimes I run a new flapper under hot water to help it to seat. And sometimes they may need to seat in for a day or two. Make sure the seat is clean there can be parts of the old flapper stuck to it' Other things that can cause this are the tube from the fill valve to the flush valve is stuck down to far in the flush valve below the water line. Also I have seen the flush valve tube have a crack. Usually I cracked it adjusting the fill valve or taking off a really hard flapper. If you think this is dumb you haven't changed a thousand flappers and I have changed a lot more than that. Read Less
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Asked by
Brentwood, NY
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Home Improvement Profile: DIYer
September 28, 2016
Answer: 
The device at the bottom of the tank which opens to flush the toilet is apparently leaking causing the fill valve to replace the lost tank water.
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Asked by
Port St. Lucie, FL, USA
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Home Improvement Profile: DIYer
September 27, 2016
Answer: 
Is there any evidence of water seeping in to the toilet bowl very slowly. You can check this by adding some blue automatic toilet cleaner to the tank before an extended period of non-use (like overnight or when you leave for work). If there is any blue tint to the water in the bowl after the extended period without flushing you have a tank to bowl leak .I would check the flush valve flapper (the rubber Read More
Is there any evidence of water seeping in to the toilet bowl very slowly. You can check this by adding some blue automatic toilet cleaner to the tank before an extended period of non-use (like overnight or when you leave for work). If there is any blue tint to the water in the bowl after the extended period without flushing you have a tank to bowl leak .I would check the flush valve flapper (the rubber stopper that is pulled up when you flush the toilet) If it has become stiff from age or chemicals in the water there is probably water leaking very slowly out of the tank around the flush valve flapper and in to the bowl. When the fill valve falls below the set level, it opens and fills the tank to the set level. This process will continue to occur until the leak is repaired. Read Less
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Asked by
Culpeper, VA
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Home Improvement Profile: Professional
September 27, 2016
Answer: 
Most likely is that the flapper valve at the bottom of the tank is leaking.
Put a few drops of food coloring in the tank and see if the bowl turns color without flushing.
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Asked by
Palatine, IL, USA
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Home Improvement Profile: Professional
September 27, 2016
Answer: 
You have a leak at the seal or flapper. Replace that and it should solve your problem.
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Asked by
Los Angeles, CA
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Home Improvement Profile: Other
September 27, 2016
Answer: 
It means that you probably have water slowly leaking from the flapper, and the tank is refilling to the level it requires. Change your flapper and see if the problem goes away. This also means you are using a lot of water, so I hope you don't live in California where there is a drought!
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Asked by
Puerto Rico
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September 27, 2016
Answer: 
You need to check the tank flapper maybe needs to be replaced.
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September 27, 2016
Answer: 
Dear valued customer thank you for your question concerning our Universal Toilet Fill Valve. The fill valve is reacting to some sort of water loss. What your hearing is called "ghost flushing". You need to figure out where your water is escaping in the tank. At Fluidmaster, we are committed to providing our customers with an exceptional experience with our products and our service. We want to learn more Read More
Dear valued customer thank you for your question concerning our Universal Toilet Fill Valve. The fill valve is reacting to some sort of water loss. What your hearing is called "ghost flushing". You need to figure out where your water is escaping in the tank. At Fluidmaster, we are committed to providing our customers with an exceptional experience with our products and our service. We want to learn more about your experience and offer support. Please contact us at your earliest convenience and we’ll do everything we can to resolve your issue. Fluidmaster’s Technical Service Department is available Monday through Friday from 5:30 AM through 5:00 PM Pacific Standard Time. Contact options include: Chat www.fluidmaster.com/support E-Mail techsupport@fluidmaster.com and Toll Free 800-631-2011. Read Less
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Asked by
michigan
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September 27, 2016
Answer: 
your water level in your tank is dropping, meaning its leaking, possibly from the flush valve gasket into the bowl, no exterior leak, or your leaking from the tank to bowl gasket, exterior leak. The latter would cause a visible water leak
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Asked by
Savannah, GA, USA
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Home Improvement Profile: DIYer
September 26, 2016
Answer: 
Water must be leaking from the tank into the bowl. Did you put in a new gasket when you installed the new valve? Did you replace the ballcock at the same time. Check these things and I think you will find your problem.
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Asked by
Florida
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Home Improvement Profile: DIYer
September 26, 2016
Answer: 
The rubber "flapper" seal at the bottom of your tank is leaking. Easy fix, Go to the plumbing department and by one that looks just like yours and swap the new one in place. It's about a 30 second fix if you take your time.
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This question is from Universal Toilet Fill Valve
 
11 answers

Need to hold my tiolet handle for it to flush, What can I buy to fix this problem

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Asked by
New Orleans
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April 15, 2014
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Answers (11)

Asked by
Texas
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July 2, 2014
Answer: 
New flapper valve. If you watch a working toilet flush, the flapper floats up for a few seconds, and then flops down to seal the drain hole.
That or your tank isn't filling enough before you flush to keep the flapper up long enough, or your handle isn't raising the flapper up high enough. If the latter, shorten the chain.
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Asked by
tucson
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June 24, 2014
Answer: 
Sounds like the flipper assembly. It's the rubber valve that sits on the bottom of the reservoir tank that keeps the water in the reservoir basin until time to flush. There is a chain attached to it and the flush handle that lifts it. It slowly comes back down as the water level reduces. Sounds like this is the problem.
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Asked by
SAN ANTONIO,TX
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June 3, 2014
Answer: 
Try to adjust the chain to the flapper valve, If it is not clearing the opening. If that does not work, replace the flapper valve and the chain to the release lever. You will have to adjust the new chain to insure it does not stay open. Good Luck and keep at maintaining your property. The small jobs will give you the satisfaction and courage to try new and harder projects!
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Asked by
Ohio, USA
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June 3, 2014
Answer: 
try to tighten the nut on the back then tighten the chain
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Asked by
Atlanta, GA, USA
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May 20, 2014
Answer: 
A new handle or it could be your fill vaule not properly filling the tank so not a nuff water Is getting in the tank .
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Asked by
Arizona, USA
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May 13, 2014
Answer: 
Check that the length of the chain from handle to flapper is correct. Not to tight and has some play but not too much chain that will cause the flapper not to lift on a easy flush motion and you need to hold the handle to lift the flapper.
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Asked by
West Chester, OH, USA
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April 29, 2014
Answer: 
SHORTEN THE CHAIN OR REPLACE THE FLUSH (FLAPPER) VALVE.
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Asked by
Harrison, AR 72601, USA
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April 23, 2014
Answer: 
Kimmy,
There are three possibilities,1. the chain that attaches to the flapper at the bottom of the tank and the handle has two much slack, shorten the chain so just barley any slack is there. 2. the american standard units included a small float on top of the flapper someone may have changed the flapper to a standard one, change it to the right one. 3. there were some manufactures that failed to get a Read More
Kimmy,
There are three possibilities,1. the chain that attaches to the flapper at the bottom of the tank and the handle has two much slack, shorten the chain so just barley any slack is there. 2. the american standard units included a small float on top of the flapper someone may have changed the flapper to a standard one, change it to the right one. 3. there were some manufactures that failed to get a unit that flushes properly,if you have one of these you are doing the one thing that helps . in this case i recommend replacement . home depot has flush gauges at their display, be sure to get a 10 and one that uses a flapper , there are many strange methods out there but the old standard style flapper is the best.Their Glacier bay series works great for about 100 Bucks Read Less
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Asked by
San Juan Capistrano, CA
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April 16, 2014
Answer: 
I would suggest trying a new flapper valve along with a new tank lever. The flapper valve to choose from is dependent upon the age of your toilet. If your toilet predates 1994,I suggest using our model 501 or 504. Both Flappers are designed to stay open longer for a full flush. If your toilet's age is after 1994 then using an Adjustable flapper like our models 5051 and 502 would be recommended as these Read More
I would suggest trying a new flapper valve along with a new tank lever. The flapper valve to choose from is dependent upon the age of your toilet. If your toilet predates 1994,I suggest using our model 501 or 504. Both Flappers are designed to stay open longer for a full flush. If your toilet's age is after 1994 then using an Adjustable flapper like our models 5051 and 502 would be recommended as these flappers will allow the proper amount of water to flush in the bowl and not be wasteful with the tank water. Read Less
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Asked by
Royersford, PA
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April 15, 2014
Answer: 
Try shortening the chain between the handle and the flapper, this may lift the flapper higher and allow more water to flush.
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April 15, 2014
Answer: 
Hello Kimmy, I’m Chris from the Home Depot’s how-to Community. Thank you for your question.
Actually, you may not have to buy anything at all.
Inside the toilet tank there is a rubber flapper at the bottom which is connected to the handle arm by a chain. It sounds to me that you just need to adjust the chain so that when the handle is at rest there is just a little bit of slack in it. When you push the Read More
Hello Kimmy, I’m Chris from the Home Depot’s how-to Community. Thank you for your question.
Actually, you may not have to buy anything at all.
Inside the toilet tank there is a rubber flapper at the bottom which is connected to the handle arm by a chain. It sounds to me that you just need to adjust the chain so that when the handle is at rest there is just a little bit of slack in it. When you push the flush handle, that properly adjusted chain will allow the rubber flapper to rise far enough off the drain to float as the toilet flushes. The flapper will reseal the drain as the tank empties and all should be good.
I hope this helps,
Chris.
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This question is from Universal Toilet Fill Valve
 
11 answers

What causes my fluidmaster to fill the tank so slowly, as long as 5 minutes to fill? I have slow fill on 2 toilets.

This question is from Universal Toilet Fill Valve
Asked by
Detroit, MI
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April 10, 2014
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Answers (11)

Asked by
lake st. louis, mo
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February 11, 2015
Answer: 
could be water line pressure, or valve is not open all the way, or valve is partly blocked
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Asked by
KY (40383)
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January 2, 2015
Answer: 
I replaced my Fluidmasters with new Fluidmasers for the same reason. Corrosion products within the water lines (galvanized pipes, 30 years old), CaCO3 (calcium carbonate, lime stone, from hard water) and FeO3 (plain rust) collected over time inside the valve and throttled the flow of water. As more months went by the filling time became 20 minutes for both of my bathrooms.
Even if you install a new Read More
I replaced my Fluidmasters with new Fluidmasers for the same reason. Corrosion products within the water lines (galvanized pipes, 30 years old), CaCO3 (calcium carbonate, lime stone, from hard water) and FeO3 (plain rust) collected over time inside the valve and throttled the flow of water. As more months went by the filling time became 20 minutes for both of my bathrooms.
Even if you install a new valve, the sediments have to be flushed to clear the path. I installed the lowest cost valves, flushed the dirt (sediments) out (follow the instructions that come with the valve) and everything will be just fine. Read Less
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Asked by
Sachse Tx
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Home Improvement Profile: DIYer
December 10, 2014
Answer: 
Hi
You need to replace the tank water fill valves.
I would replace with (Universal Water Fill Valves) available from your local Home Depot store or Home Depot online..
First -turn off the water line from the wall water supply to the tank..closed..
Now flush the water from the tank by holding the flush valve down till all or most all the water is drained from tank and toilet..
Now ..remove the old
Read More
Hi
You need to replace the tank water fill valves.
I would replace with (Universal Water Fill Valves) available from your local Home Depot store or Home Depot online..
First -turn off the water line from the wall water supply to the tank..closed..
Now flush the water from the tank by holding the flush valve down till all or most all the water is drained from tank and toilet..
Now ..remove the old fluidmaster from the tank..
Also*** check the Flapper and seals to the drain..If they are in need of replacing..do it now since you are already in the tank..
This is easy..Unscrew the tank nuts and bolts securing the tank to the toilet..
Remove the old flapper,seals ,rings from the tank and toilet..Replace with the new flapper kit from Home Depot and re secure the bolts,nuts and tank to toilet..DO NOT OVER TIGHTEN the bolt nuts to tank to toilet..Make a secure snug fit..
If just your fill valve to replace...
Take your new Universal Fill Valve and install where the old one was..Just screws into place..
Make sure your water spray line is placed inside your tank where the water spray hose is facing towards the inside tank to fill tube and not the tank wall...
Now secure the water connection hose has new water seal tape on the threads and resecure to take ..
Now turn the water on and check for leaks..No leaks..Good...Now just fill your tank ..
Check your water flush handle to make sure you are getting a secure fit and flush from inside your tank from handle,to flapper..If not..adjust as you see it.
If all is good ---You are completed...!
This is a very easy install and should not take you much time to complete..
I hope this helps you..
Read Less
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October 7, 2014
Answer: 
is water valve all the way on? Did you flush the gunk out of tank first? That's all I can think of...
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Asked by
Texas
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July 2, 2014
Answer: 
Is the water shutoff behind the toilet open all the way?
Have you popped open the top lid of the valves and cleaned/flushed them?
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Asked by
Ohio, USA
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June 3, 2014
Answer: 
its clogged up must take top off & wipe the diaphragm off then but try this first turn water off then disconnect the supple line and check for debris
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Asked by
Atlanta, GA, USA
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May 20, 2014
Answer: 
I must be the water pressure going to toilet check the angle stop and make sure it is fully open .
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Asked by
Arizona, USA
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May 13, 2014
Answer: 
How old is the fluidmaster? If less than 5 years, it may be faulty, if greater than 5 yrs it may be time t change out. They work great, but do not last forever.
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Asked by
Harrison, AR 72601, USA
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April 23, 2014
Answer: 
you may have some trash in the valve . shut your water off next to the toilet ,take the lid off the tank, flush the toilet to empty water . There is a plastic cap on the top of the flush valve ,take it off you will see two keepers that hold the insides in use a screw driver to lift these tabs enough so you can turn it. with it apart clean out any trash you see then hold your hand over the opening loosely Read More
you may have some trash in the valve . shut your water off next to the toilet ,take the lid off the tank, flush the toilet to empty water . There is a plastic cap on the top of the flush valve ,take it off you will see two keepers that hold the insides in use a screw driver to lift these tabs enough so you can turn it. with it apart clean out any trash you see then hold your hand over the opening loosely then open the water valve just a trickle to flush out any remaining trash ,turn it off put it back together try it out .Where i live this usualuy does the trick. hope it works for you. Read Less
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Asked by
Boynton Beach, FL, USA
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April 22, 2014
Answer: 
Make sure the the incoming water valve is open all of the way.
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Asked by
Royersford, PA
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April 11, 2014
Answer: 
Not sure... Are they new or old? Is the water valve all the way open? Did any sediment get in the lines while replacing? I don't think it has an adjustable fill speed...
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Customer Reviews

Rated 4.4 out of 5 by 719 reviewers.
Rated 1.0 out of 5.0 by Agree with DW's 8/16/16 review! This time around, I bought 3 valves for 3 toilets 1 week ago. One valve has already started to hiss (valve not completely closing) even after selecting the lowest fill level. After about an hour, it has reached the top of the toilet's fill tube and is wasting water just like I am going to have to do on gas and time getting and installing a replacement! And yes Fluidmaster, I installed it correctly as shown in my photo. It wouldn't have worked for a week without issue if I hadn't. August 29, 2016
Rated 5.0 out of 5.0 by Best buy andthank you Work just fine for me JEROME first please and thank you September 20, 2016
Rated 5.0 out of 5.0 by Probably the best possible device made for the service it provides. Easy to setup and install. Functions extremely well. Fully adjustable to fit just about any tank. (I have seen one used as the water level control for a swimming pool!) Instructions are very complete down to how to fix possible problems. Installation requires nothing more than an adjustable set of channel-lock pliers, and I usually have it completed in less than 2 minutes. I have used this device exclusively for nearly 15 years and never have had a failure! Great product - wouldn't use anything else in my house. October 25, 2016
Rated 5.0 out of 5.0 by Very Easy Repair Toilet had a tiny leak, so slow it was only heard in the middle of the night when the house was quiet. The valve has a gasket at the top so I tried to replace that first but the water would not shut off. Put ghe old gasket in and water would shut off when the tank was full. Called the vendor and they told me if my valve wss more than 5 years old the new gasket would not work. Went back to HD and bought the unit, installed it, no more leaks. When installing the new valve set it to the same height of the one you just pulled out. Save yourself some time, get a new flapper, gasket and valve. Take back what you dont use. This unit is so easy to install my 16 year old did the repair in his bathroom October 18, 2016
Rated 5.0 out of 5.0 by What do you say about a fill valve? Fits fine and the leak has stopped. The only thing was that the directions have you clipping the refill tube but this did not work for me. I just had to feed the little tube right into the hole at the top of the overflow pipe. I am a single female in my 50s with very little experience in DIY stuff, but I could not see paying a plumber $150 or so for what turned out to be an easy and inexpensive fix (once I figured out which part really fit into my toilet). Things have changed and the old ball & cock seems to be phasing out, so I was a little confused, but I figured it out with a little help from YouTube. October 2, 2016
Rated 5.0 out of 5.0 by I've always used Fluidmaster valves and have never had any problems. Very inexpensive, couldn't be easier or faster to install, and works perfectly. Best of all, NO BALL! October 25, 2016
Rated 5.0 out of 5.0 by Small But Important Purchase Yes, this was a very good choice to replace the one that was installed with my toilet. NO metal parts to rust, all plastic, and I noticed it flushes much quieter, good for those that don't want to flush and disturb their sleeping spouse etc. This is a winner! October 25, 2016
Rated 4.0 out of 5.0 by Very easy to install and I've used them before.good product for the money. October 25, 2016
  • 2016-10-30 T20:54:48.836-05:00
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