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Plumbing in the Home/Mansfield Toilet Flushes Hard

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Chick wrote at 2006-09-29 22:57:17
I just had the same problem and discovered it was the rubber ring below the flush tower.  A new ring is flat, but the old one had warped down and the tower seal was dropping down over it and sticking.  I replaced the rubber seal and the toilet now works fine.


Sam wrote at 2007-05-31 01:04:09
I had the same problem.  Fixed by replacing the RED seal for $1.48 from Home Depot.  Can't believe the toilet is only 5 years old.


Mac wrote at 2007-08-13 21:27:28
I had the same problem and fixed it by replacing the RED seal for <$2. 00. Thanks to email replies I saved a bunch. READ the replies it can certainly save bucks!


kk wrote at 2007-08-27 17:46:27
Hi Linda, The reason I am even on the internet looking under toilets is that we have had three floods in our home from, I believe, Mansfield toilets! They all started having the same problem that you are talking about-- hard to flush.  Well, soon the handles would stay down after flushing and our bowls would eventually overflow causing our drainfield to eventually be overwhelmed (I guess) and following, 3 very expensive repairs to be made. Our toilets were installed in 2001 when our home was built, so were not old when the first two floods occured in 2006.  My advice to you would be to replace your Mansfield toilets ASAP.  They say hindsight is 20/20, and if I knew then what I know now, I would have replaced more than the flush valve seal (which we did). We will be purchasing three more new toilets (we previously replaced one). We are now in the process of making repairs for the third time and are hoping that we don't loose our Homeowner's Insurance over this problem.  I wish you good luck with you're problem and hope you don't have to go through the same thing we have had to endure.


DM wrote at 2007-10-30 04:41:35
I have had the same problem and it is easy to fix. In my case (Mansfield from 2000), there is a red rubber seal at the bottom of the flush valve. Over time, the red seal will curve and create a much stronger suction grip on the flush valve. This, in turn, creates a very difficult flush requiring enough force to break the handle.  I believe the seal is a #M001. I paid 1.54 for a new one tonight (Home Depot). Turn off the water, unscrew the fill tube, lift off the flush valve (rotating it to remove it from the flush lever), and remove and replace the red seal at the bottom near the water outlet.  Be careful of 2 things: (1) the red seal and black base will be very sticky and dirty - your water will turn black and so will your hands (2) the red seal must be positioned in the slot at the top of the bottom water outlet (or whatever it is called).  If you do this, and replace the parts, your flushing force will be minimal. It may take some fiddling to get the red seal seated properly. Every one of my 3 units leaked for a few minutes until I reseated them. Once reseated, I had no problems.


Ken wrote at 2008-06-16 10:44:53
I had the same problem.  It was fixed by simply changing the flush vale seal (under $2 at Lowe's).  Toilets are now working like a charm!



Ken


jeff wrote at 2008-07-13 21:30:01
Previous answer is bang on.   Only hard part was twisting the tower counter clockwise enough so that the stem coming from the handle would be free of the hole that connects the stem to the tower....but with a little bit of pressure to the tower, it comes out.



As I just fixed the 3rd toilet of our 3, all with the same problem, I think its a safe bet your problem is a $1.99 red rubber ring (looks like a wide mason jar ring) at the bottom of the tower that just needs replacing...takes about 2 minutes.



Best of luck.


stacey wrote at 2009-10-08 21:47:46
Hello, I replaced the red seal due to a hard flush, but now the toilet won't stop running.  I am so frustrated.  Glad it worked for you folks.


Carol wrote at 2009-11-20 16:20:32
I too have the same problem. I fixed the red seals but now all three of my toliets won't stop running.  Any ideas?


Not Mansfield wrote at 2009-12-12 13:52:34
I am in the process of replacing this red seal. I have not yet been able too, but I will keep trying, with the advice stated above I am certain I will be able to. Good luck to me.


Not Mansfield wrote at 2009-12-12 15:45:05
As a follow-up, allow me to say that the advice furnished by DM on 2007-10-30 04:41:35 is right on the button. Simply remember that the important thing is the installation of the rubber seal in the slot at the top of the bottom water outlet. Thanks a lot DM. signed JMP


Not Mansfield is Yes wrote at 2009-12-13 13:08:30
This is the instruction furnished by Mansfield.

Installing a new seal:1)Turn off water supply

2)Flush water closet until most of the water has left the tank (there will be some residual water left in the bottom of the tank).

3)Remove refill tube from flush valve.

4)Unscrew cap from top of flush valve, twist flush valve until the trip lever arm is no longer attached, and then remove flush valve float from tank.

5)Place new flush valve seal around upper channel.  Be sure seal is seated well in channel by “working” the seal into the groove around the entire circumference.

6)Re-assemble flush valve float, trip lever, cap, refill tube, and then turn on water supply.

7)Please Note: Some seals require a “Seat in” period of 50 to 100 flushes to achieve a total seal. During this break in period, small  amounts of water weeping out of the rim holes is normal.Customer Service: 877-850- 3060 or Fax: 419-938-6234 JMP


Bubba B wrote at 2010-10-02 17:30:57
I bought one blue, one gray and two red seals for a Mansfield flush valve at Lowes three years ago. The red seals were in a Fluidmaster package and specified for Mansfield only and the other two just had a UPC sticker on them and were hanging on hooks. The only one that would seal was the red seal. The blue and gray were too stiff and leaked. Make sure you only buy the red seal! Today, the other toilet leaked. Luckily, I bought an extra red seal at the time because I couldn't find one at Lowes or Home Depot. Apparently, both stores no longer carry Mansfield parts.


hootocol wrote at 2010-11-27 18:24:02
I highly recommend replacing Mansfield toilets unless you don't mind replacing the "red washer" on a regular basis.  I have three of them.  They get clogged all the time.  Sometimes even on a courtesy flush.... if you know what I mean.  I replace the "red washer" every year or so in each toilet as they start leaking.  I'm looking for new toilets now.  I guess I'm a fix and forget sort of guy, so the hassle of messing with these things is really irritating.  It's just a principle thing not to continue to deal with such a poorly designed product.


temblor wrote at 2011-01-01 21:24:53
I agree with an earlier comment stating that DM at 2007-10-30 04:41:35 accurately described how to do this repair. My original washer was gray; the $1.95 replacement from Home Depot was red (indicated as a Mansfeld 210 replacement). Be sure to replace the washer in the uppermost slot. It is easy to replace it in error into the lower slot, which will leak horrendously. Once you figure out how to do this repair the first time, it only takes a few minutes to make the change in additional toilets.  


YouRang wrote at 2011-01-03 19:35:05
I don't know if Mansfield has changed their design or what; but I have owned a Mansfield Tower design flush valve on a regular toilet (I forget which brand) since the mid 80's and it has never leaked at all!!!  And ditto for a Mansfield toilet I bought about 7 years ago.


3Eagles wrote at 2011-01-29 18:45:33
I have a Mansfield that keeps running. Its in the flush valve (?) I replaced the black seal at the bottom with a new one that fit perfectly. Problem is it doesn't always seal. Sometime a handle shake will do it. Sometimes you need to open the top and move the flush valve slightly. Is this seal too hard or maybe not fitting properly? I have removed and replaced it to ensure it was straight. Help! Frustrated in NH


Clark wrote at 2011-03-13 21:24:17
I've had to replace the seal about every 5 years.  I'm thinking I should go along with the replies that say replace the toilet.

Anyway, here is a YouTube video that shows how to replace the seal.  I think my problem is that I've put the seal in the wrong notch.  



http://www.youtube.com/watch?v=XhQeNQyRATw&feature=player_embedded


PinoySnsdFan wrote at 2011-03-25 04:13:29
We had the same problem. It's an easy fix. Go online and get Mansfield plumbing's phone number and tell them that your Mansfield toilet is hard to flush, but before you call, know your toilet's model number. It's printed on the tank's lid and possibly a P160. You cal also tell them that your handle is bad and they'll send you the handle and the flush valve (red round rubber). Then, go to youtube.com and search mansfield 630 0030 to show you how to PROPERLY install it. You'll know if you didn't install it correctly as water will keep dripping in your toilet. Hope this helps.


Al Bundy wrote at 2011-04-10 23:51:16
Got my red washer at Lowes today for $1.78.  I watched the youtube video a few posts up that really helped.  Changed everything out in about 5 minutes.  I did need a screwdriver to help me get the old washer out of the groove.  Also, there does get a lot of black in the water but no worries.  It flushes out with the first tank fill.  



Only problem I had was when I turned the water off the valve kept dripping badly even when I turned the water on.  Had to get a pair of pliers to tighten the nut.  All is now good.  Al Bundy would be proud.


fvproperty wrote at 2011-04-24 07:39:37
I have a building with 12 Mansfield toilets. All had gray colored flush valve seals. The new red seals are slightly thicker and a bit more rigid. The red seals tend to leak on every toilet on which they have been installed. Leaky toilets have been fixed by removing new gray seals from flush valves on-hand as spare parts. Well, we are now out of gray seals. Does anyone know where to buy the original "flexible" gray seals? It seems that others have had trouble with leaking even after the installation of a new seal, and does it make sense to flush a toilet 50-100 times and hope it will then seal? And all the water wasted between those 100 flushes? If you can find the original style, more flexible and gray in my experience, life will be easier.


Cory Dumalski wrote at 2011-06-05 22:22:53
If the red seal continues to leak after proper installation, Mansfield says that 50-100 flushes may form the seal enough to stop this leakage.  Instead of wasting a swimming pool of water, I manually moved the flush valve up and down (with a little force) 10-20 times (without water in the tank).  This solved my issue with water leaking by the seal.  Hope this helps someone.


JL wrote at 2011-06-10 20:38:28
Thanks to all the previous postings. They are really helpful. I called the Mansfield Customer Service (phone number on their web site) and received the free replacement RED seals in the mail. I watched 2 YouTube videos and fixed the "HARD TO FLUSH" problem in no time.



http://www.youtube.com/watch?v=-aGSAVGxn1I   (How to remove the Handle)

http://www.youtube.com/watch?v=XhQeNQyRATw&feature=player_embedded (How to replace the Red Seal)  


FixitChuck wrote at 2011-10-21 20:39:38
If it is hard to flush, simply turn to colored seal over and it will buy you some time until you get a new seal.  I keep an extra seal now taped to the top of inside of the toilet bowl cover on all my toilets. Put the seal in a zip lock bag so it does not dry out.


SDR wrote at 2012-04-05 19:14:33
Google brought me here looking for answers after my flush handle broke. I bought a generic replacement handle from Home Depot, but it still required a lot of force to flush, much more than normal. Read this thread, Watched the videos linked.  Replaced the seal with one bought at Home Depot. It's a Moen manufactured part, says Mansfield 210 on it, was $1.99.  Toilet is flushing like a dream. Had I of read this first and had the parts handy, it would've been a 15 minute fix. Thanks to everyone for their input.


EDMAZO wrote at 2012-10-17 12:36:51
After reading about the problems people have with toilets I must give my advise.

Being a Master Plumber with 40yrs experience one of the problems I saw many times was

bad water affecting the rubber components in the plumbing system.

I would suggest anybody having problems with with rubber componants distorting or turning

black and flaking off should have their water tested.  


MEPace wrote at 2012-11-30 18:38:54
I've replaced this seal previously, it took me four days before I figured out the trick to get the gasket to seat properly.



After installing the gasket in the groove grab it with your fingers 180 degrees apart and turn the gasket back and forth about 1/4 inch each way and it will seat.


mo money wrote at 2013-01-28 05:29:39
*if u replaced the red seal but the toilet keeps running* try this. The toilet keeps running because there is a leak. water is leaking from the tank into the toilet bowl. It's a leak slow enough not to notice but fast enough to keep the tank from maintaining water. Thus it keeps running to stay full. If u listen u can actually hear this leak.  Here's the problem.. if u remove the tank lid u see that in the bottom there are big bolts. These loosen over time by the weight of people sitting on the toilet slightly separating the tank & bowl. To fix it, turn off the water supply. Flush the toilet until the tank is empty. Tighten the bolts with pliers or screwdriver. Turn water back on & let tank fill. All should be well. If it keeps running now, look into replacing the gasket(big black seal) at base of the tank :-)


mo money wrote at 2013-01-28 05:31:06
*if u replaced the red seal but the toilet keeps running* try this. The toilet keeps running because there is a leak. water is leaking from the tank into the toilet bowl. It's a leak slow enough not to notice but fast enough to keep the tank from maintaining water. Thus it keeps running to stay full. If u listen u can actually hear this leak.  Here's the problem.. if u remove the tank lid u see that in the bottom there are big bolts. These loosen over time by the weight of people sitting on the toilet slightly separating the tank & bowl. To fix it, turn off the water supply. Flush the toilet until the tank is empty. Tighten the bolts with pliers or screwdriver. Turn water back on & let tank fill. All should be well. If it keeps running now, look into replacing the gasket(big black seal) at base of the tank :-)


Nil Raj wrote at 2013-11-05 02:28:29
PinoySND fan thanks for the video mansfield 630 0030. It was a savior. I struggled with seal whole day yesterday. Saw the video today and reinstalled. It works. Thanks buddy


MiPlumber wrote at 2015-10-08 16:37:26
I've been putting Mansfield toilets in for decades. This problem multiplied rapidly when they switched from the gray seal to the red one. Once an old customer calls me to replace the original 20 year old seal, it's almost a guarantee that I'll be back every 2 years. If you ever find any old flush valves with gray seals, hoard them!



Also, to the people changing their toilets because of this: did you ever try switching out your flush valve to a different style with a regular flapper? Seems like a terrible waste of money buying an entire toilet when a $10 part solves the problem for good..


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