The Mansfield toilet, different
from all other toilets, it does not have a normal flapper,
it has a unique plush valve and valve seal, it has a unique
flush handle, and unique failures.
On this page I will show you what happens when the
Mansfield flush handle breaks, and what caused it to break,
and how to fix both problems.
note: you can click on any image to see a larger image. This
is the Mansfield toilet flush handle, it was broken when I
arrived at the job, first thought, the handle is only
plastic, so it broke, nothing unique about that, So I had a
standard flush handle on hand, and replaced the flush
handle, the replacement handle was not made for the
Mansfield toilet it was just a standard flush handle. When I
tried to flush the toilet with the new handle installed, I
could not get it to flush, I pushed down very hard on the
flush handle lever, but it would not go down and the
Mansfield flush valve would not go up, I have seen this
my thumb pressing hard on the new flush handle, it does not
move, when I push down harder I notice that the new flush
handle is starting to bend, If I continue the flush handle
is going to break. So now I know something else is wrong, as
I said before I have seen this problem before, the valve
seal, has become soft and warped.
first thing that needs to be done, is remove the top piece
with the plastic tube tied to it, it unscrews
counterclockwise, once unscrewed just push it to the side,
note in this repair I did not bother to turn the water off,
it is such a quick repair, very little water was wasted.
the top piece removed the Mansfield flush valve comes
straight up, but you have to bend it so the flush handle
comes out of the opening on the side, then the flush valve
comes right out.
If your flush valve is very dirty, this
is a good opportunity to clean it.
is what the Mansfield flush valve looks like from the side,
just place it out of the way for now, there is not anything
to replace on it for this repair.
that the Mansfield flush valve has been removed, you can see
the Mansfield valve seal, it's the red washer at the bottom
of the toilet tank. The valve seal fits inside a grove at
the base of the flush valve.
I reach down and grab the valve seal, I don't just pull it
up, I pull it out to the side, removing it from the grove,
then I pull it up and remove it, then I make sure I did not
leave any part of it in the grove. Note: mast of the time
the Mansfield valve seat is red or pink, it can also be
is the old Mansfield valve seal, notice that is is beveled,
this beveling happens when the seal gets old, or if it is
exposed to drop in bleach tablets, and other products that
people put in to the toilet tank, to help keep the toilet
clean, unfortunately these things cause all the rubber parts
in the toilet tank to fail.
Hot water in the toilet tank
will also cause the toilet valve seal to get soft and fail.
The beveling of the seal is what causes the flush valve to
be so hard to lift, it is designed to be flat.
is the new Mansfield valve seat, you can find them at any
big box store or hardware store.
how nice and flat the new valve seal is, this is the way it
is supposed to look, once installed the toilet flush valve
will come up very easy, taking a load off of the toilet
installing the Mansfield valve seal, be sure to get the seal
inside the grove all the way around and that it is flat and
not pushing up or down.
Once this valve seal is in place,
you can start putting it back together again.
putting the flush valve back on, don't forget to put the
flush handle into the hole provided before you push it all
the way down.
the flush valve is set in place, screw the fitting with the
tube tied to it back on top of the flush valve.
turns out the new non Mansfield flush handle does not allow
the flush valve to sit all the way down on top of the valve
seal, so I have 2 choices, one get the proper flush handle,
or two remove the handle from the flush valve, use a zip tie
to connect the flush handle and the flush valve together
above the opening on the flush valve, don't make it tight or
the flush valve will get stuck in the up position.