I've got 3 of the same toilets installed in the house I built in
2005. One toilet has me totally freaked out. It doesn't flush
properly and has gotten somewhat worse over time. I can hold the
flush handle down and the flapper opens just fine. The tank is filled
with water and it empties at rate similar to the other toilets. The
bowl just fills up with water the whirlpool starts but it acts as if
it is slightly plugged. It flushes a little and the waste eventually
goes down, but never the normal "empty the bowl" flushes I see in the
other toilets. I've plunged it before so I know there is no clog.
Does anyone have some advice on how to debug this? My instinct says
the bowl was just casted defective. I can't imaging its a larger plug
somewhere else because all the other drains in the bathroom work fine.
If it's always been a problem I'd suspect lack of near enough or large
enough venting or simply a poorly laid out drain line path that while it
isn't blocked it does add flow restriction in the path. An example
could be a 90-ell instead of sweep in a horizontal run or this is the
last on a longer nearly horizontal run or somesuch...
the siphon is performed in the toilet. As long as the pipe is of proper
size, it doesn't need vertical drop. As a matter of fact MOST toilets
will have a 90 immediately after the flange just below the floor joists.
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"...Here are some things to try if the weak flush is caused by an
obstruction in the bowl's rim, where water is discharged. Toilets with
this problem may quickly accumulate unwanted deposits because the
flush leaves portions of the bowl unwashed."
Are you sure the tank is filling high enough (marked line in tank)?
I had some bad toilets in the past and would adjust the water fill to
stop just before it reached the overflow tube. On one I put a pipe
fitting on the overflow tube so I could raise the water higher. (can't
go too high or the water comes out at the flush handle) Now I have one
that works great with no blockage in a year or so since I installed it,
and a second that the previous owner replaced and it almost always works.
Always possible that the wax ring was compressed too much and interferes
with the flow.
The damnest problem I ever had was when the lid from a small makeup case got
trapped in bowl loop. Sometimes it would pivot one way and all would be
fine. The next time it flipped the other way an nothing went down.
Did not solve that problem or know the cause until I used the BFH on the
removed bowl. Using the BFH was an act of faith as I knew there had to be
something in there.
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I had something like this happen to me once. It drove me crazy until
I pulled the toiled and found that a piece of dental floss that
someone had tried to flush had gotten hung up across the bowl
discharge where it mates with the floor flange. Liquids would flush
without a problem, but solids would be impeded by the floss and
prevent a good flush.
re: "a piece of dental floss that someone had tried to flush had
gotten hung up across the bowl discharge
re: "a small makeup case got trapped in bowl loop."
In my case it was the cardboard roll from the toilet paper. (darn
It was stuck vertically allowing liquids to pass but catching solids.
I had come across a similar problem a few years ago with my parents
Replacing the toilet fixed the problem. As I was throwing the old one
out I noticed a small hole
in the siphon part of the toilet. Paper would catch in that hole and
the toilet would act just like
you describe. How did the whole get there? I think it possible a small
metal snake that was used
on the toilet years ago may have caused the damage.
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