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Old 06-01-2017, 06:07 PM   #1
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Slow toilet, otherwise everything fine.... but slow toilet


Hello,

I have a building with a slow toilet on the second floor. Its two feet away from the main stack, but its acting like a venting problem.

That main stack has another toilet above it (3rd floor) which works well.

from the roof,i can hear the 2nd floor toilet flushing.

If the vent was clogged, surely the third floor toilet wouldnt work. if it was clogged in between the two, wouldnt the third floor toilet back up?

The vent is undersized, it drops from 4 to 2 in. most of what i look at indicates that this isnt an issue in and of itself (the third floor toilet has the same handicap, and works well)

Could it be the toilet itself?

Ive messed with the plumbing a fair bit, but one item i didnt touch was the 2nd floor toilet, and it did not used to have problems.

Ive attached a diagram, though i fear i am overlooking some of the other fixtures. The third floor kitchen and bath both connect to the third floor 4 in line. The second floor is a short run from the toilet to the stack.

There is a secondary 2 in pipe that runs alongside the main stack and eats much of the other water. It connects to the main near the bottom, and it independently vented.

Any insight would be appreciated, thank you in advance.
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Old 06-01-2017, 07:02 PM   #2
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Re: Slow toilet, otherwise everything fine.... but slow toilet


Using a 3 gallon pail of water dump it as fast as possible into the slow toilet without the water going over the rim of course and report back with your findings.
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Old 06-01-2017, 07:14 PM   #3
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Re: Slow toilet, otherwise everything fine.... but slow toilet


Far more likely it's a plug from the toilet to the main drain line.
Pull the toilet and snake the line.
And no a small snake made for a sink is not going to work.
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Old 06-01-2017, 09:16 PM   #4
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Re: Slow toilet, otherwise everything fine.... but slow toilet


rotated image for ya- It shows a multi-floor wet vent which is not code. There is probably another vent on the 2nd floor

Try a toilet auger to clear the slow toilet
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Old 06-01-2017, 10:09 PM   #5
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Re: Slow toilet, otherwise everything fine.... but slow toilet


As stated, run a toilet augur in it.

I have gotten combs, toothpaste caps, toy trucks, and similar items from slow flowing loos.

ED
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Old 06-02-2017, 05:49 AM   #6
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Re: Slow toilet, otherwise everything fine.... but slow toilet


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Using a 3 gallon pail of water dump it as fast as possible into the slow toilet without the water going over the rim of course and report back with your findings.
I forgot to mention, I did do this test (filled the bowl almost to the brim), same problem.
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Old 06-02-2017, 05:51 AM   #7
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Re: Slow toilet, otherwise everything fine.... but slow toilet


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rotated image for ya- It shows a multi-floor wet vent which is not code. There is probably another vent on the 2nd floor

Try a toilet auger to clear the slow toilet
There is a secondary vent on the second floor for most of the fixtures. Out of curiosity, what would be the code approved method of plumbing these? Another vent?

Otherwise, I will run an auger today and report back.
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Old 06-02-2017, 06:05 AM   #8
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Re: Slow toilet, otherwise everything fine.... but slow toilet


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I forgot to mention, I did do this test (filled the bowl almost to the brim), same problem.
That pretty much eliminates a vent problem.
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Old 06-02-2017, 06:19 AM   #9
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Re: Slow toilet, otherwise everything fine.... but slow toilet


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That pretty much eliminates a vent problem.
Really? My assumption was that it indicated the other way, would you mind clarifying the reasoning? (I believe you, I would just like to understand better myself)
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Old 06-02-2017, 06:33 AM   #10
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Re: Slow toilet, otherwise everything fine.... but slow toilet


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Really? My assumption was that it indicated the other way, would you mind clarifying the reasoning? (I believe you, I would just like to understand better myself)
Air in the line must be compressed for the vent to be a problem and if you can fill it to the brim quickly the water isn't leaving the bowl fast enough to compress air.
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Old 06-02-2017, 04:48 PM   #11
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Re: Slow toilet, otherwise everything fine.... but slow toilet


Remove the faulty toilet flip it upside down and look for feces or toys in the toilet. Sometimes toilets have issues with feces sticking in the trap.

On another note your vent is not to code. So whoever plumbed the house is missing a lot of plumbing knowledge.

Also make sure your toilet tank is filling to the flush line correctly.
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Old 06-02-2017, 06:40 PM   #12
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Re: Slow toilet, otherwise everything fine.... but slow toilet


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Remove the faulty toilet flip it upside down and look for feces or toys in the toilet. Sometimes toilets have issues with feces sticking in the trap.

On another note your vent is not to code. So whoever plumbed the house is missing a lot of plumbing knowledge.

Also make sure your toilet tank is filling to the flush line correctly.
I wont argue with you there. We were working around a ton of stuff not done correctly. My favorite was nm cable connecting to very beat up knob and tube wiring. We repaired as we could. What should be done to the vent line? I assume a secondary stack of some sort?


update on the slow toilet-

So, disconnected the toilet today and felt around in the pipe. Nothing. Stuck in a piece of cardboard until it hit the wall of the main drain, then dumped a bucket of water in the vent on the roof. Cardboard was soaked.

Poked around the toilet itself, seemed fine. didnt have a snake handy, i guess its possible that there is something stuck in the extreme bend of the toilet itself, but i don't think its too likely. will be taking a closet auger out all the same tomorrow.

Is there anything else this could be? I am guessing my next step is to just replace the toilet.
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Old 06-02-2017, 07:32 PM   #13
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Re: Slow toilet, otherwise everything fine.... but slow toilet


Being I've been told I have an inquiring mind I would only buy new after I determined what's wrong with the present toilet.

Plumbers probably have seen it all but my son bought a house with a couple of those big Toto toilets I believe. The ones that will flush a gallon of ping pong balls or some ridiculous claim. One worked just fine and the second one was OK but only about a 50 percent of flushes. We finally took it outdoors and I flushed a rope through it, tied a rag on the rope and pulled it through backwards, nothing. Couldn't see anything from either end with a mirror. Re-installed, I give up. He was telling a friend so they pulled it again. He had an 8# sledge handy and ask the friend where ya want me to smack this thing. Right there and low and behold there appeared a plastic lid from a 1 pound butter tub that had been acting similar to a check valve part time.

Now it's new toilet time. I just wasn't persistent enough to keep enlarging the rag I pulled through.
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Old 06-03-2017, 10:26 AM   #14
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Re: Slow toilet, otherwise everything fine.... but slow toilet


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Originally Posted by DIYHero View Post
I wont argue with you there. We were working around a ton of stuff not done correctly. My favorite was nm cable connecting to very beat up knob and tube wiring. We repaired as we could. What should be done to the vent line? I assume a secondary stack of some sort?


update on the slow toilet-

So, disconnected the toilet today and felt around in the pipe. Nothing. Stuck in a piece of cardboard until it hit the wall of the main drain, then dumped a bucket of water in the vent on the roof. Cardboard was soaked.

Poked around the toilet itself, seemed fine. didnt have a snake handy, i guess its possible that there is something stuck in the extreme bend of the toilet itself, but i don't think its too likely. will be taking a closet auger out all the same tomorrow.

Is there anything else this could be? I am guessing my next step is to just replace the toilet.

Replace the Toilet the newer 1.6 gallon flushers do better anyways.
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Old 06-03-2017, 02:40 PM   #15
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Re: Slow toilet, otherwise everything fine.... but slow toilet


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Replace the Toilet the newer 1.6 gallon flushers do better anyways.
Agree, especially if it is an Eljer from the 1980's.
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