Commercial toilet leak - how to solve?

KISS · Feb 16, 2008, 10:15 PM

If you take a look here:

http://www.totopros.com/upload/totop...20TMW1HNCR.pdf

And here:

Flush toilet - Wikipedia, the free encyclopedia

I think you will find a lot of useful information.

I saw a couple: 1) Use of 3/4 to 1" supply lines. 2) Flush the new installation without the regulating valve in place.

The stop does do some regulating, but my guess it sould not cause water to fill the bowl unless the flush valve is operated.

And even here:

http://www.sloanvalve.com/installati...816195Rev3.pdf

If you look at the above, you have the contrl stop and the control stop bonnet. The bonnet acts as a packing nut. Never having done this, I'd first try to tighten the bonnet. Then, I'd try to take the stop apart and clean.

Knucklez · Feb 17, 2008, 08:28 AM

Thanks for the links. I learned that the thing is called a "stop valve" and its fine tuning adjustment will set the flow rate and bowl fill level. Here is my problem, from the link I read

"To set the
Flushometer valve for proper operation, open the
Stop valve completely by turning the adjustment
Screw and flush the Flushometer valve several
Times. Gradually adjust the stop valve down, using
The adjustment screw, so that the rate of water
Flow into the fixture is not excessive, yet is
Sufficient to adequately evacuate the waste"

Unfortunately, this is what I can NOT do, because if I open the stop valve all the way it leaks! It is leaking from around the screw that the screw-driver is slowly opening. It is therefore leaking from INSIDE the stop-valve.

Now it comes with a stop valve cover which is screwed in. So technically, I could crank the cover on tight so no water escapes... But this just doesn't seem right. When someone goes to maintenance the toilet, it might spray water all over when they go to get access to the stop valve screw.

It is brand new... What to do?

massplumber2008 · Feb 17, 2008, 08:39 AM

You need to replace that stop valve. Shut water off at main shutoff (or cold water shutoff to bathroom) and flush the handle to release pressure, and just back that stop valve out (counterclockwise) and take to nearest plumbing supply house. Be careful and hold against yourself (with rag/pliers on valve) when loosening stop...do not want to break off pipe in wall.

You may also want to pick up a diaghram (cheap part and may/may not need in future) as that may give you issue after you install the stop valve. If need to install diaghram..let us know and we can talk you through that too (water would not shut off to toilet if diaghram went bad).

The supply house will have replacement handy...and then just re-install. That should do it.

If this helped please RATE THIS ANSWER...thank you.

Knucklez · Feb 17, 2008, 01:07 PM

I think this answer has helped me. But I would like to clarify your advice.

Today, I put a bucket under the stop valve to catch the dripping water. Then I opened the stop valve all the way. The toilet bowl filled with water to about 1/2 full (probably too much, but this is just a test).

The water was pouring around the rim also, as if someone had tried to flush the toilet. Water is CONTINUOUSLY being swiriled around (just a trickle, not the full blast when someone flushes toilet). And I can hear the water going down the drain.

So I think, well, I never flushed the toilet but maybe it just needs to balance out before it can be in use. So I wait a while, and no change. Continuously trickliing out the rim, and a drainning. Water level stays pretty much the same - perhaps slowly over span of 10 minutes, water level went down 1 "

So.. No dice.

I then try the flush handle.. But absolutely NOTHING happens. No roaring flush.

I slowly close stop valve, and trickling water slowly stops. I try flush valve. Nothing happens.

I think I need to replace or fix this stop valve as you suggest. But there seems to be another problem, the water doesn't stop, and the flush action doesn't work.

Are they all related to same issue? A leaking stop valve? Fix this, and the rest gets solved magically on its own?

Knucklez · Feb 17, 2008, 01:20 PM

I bought the bowl and flush valve assembly from two different sources... Is it possible I must buy american standard flush valve so the manufacturer matches bowl to valve?

I would think it is generic.. But you never know..

massplumber2008 · Feb 17, 2008, 01:23 PM

NOPE...american standard toilet accepts sloan flush valves for sure.

massplumber2008 · Feb 17, 2008, 01:26 PM

HEY Knucklez..I just noticed something...your pipe size is WAYYYY too small for that flush valve *frown* You better PM me at this point so we can talk.

KISS · Feb 17, 2008, 01:52 PM

Mp:
I mentioned that on my first post. 3/4" pipe minimum. 1" preferred.

massplumber2008 · Feb 17, 2008, 02:02 PM

That is his problem KISS..for sure. I just saw the great sites you posted, clicked and liked what I saw...did not go back to read..sorry. Once he posted pic...became real clear!

Hey Knucklez...seems me and kiss figured this out. YOU NEED a 1 inch pipe to use that flush valve...may be able to pull off with 3/4" pipe...but I have never tried that size. Further, what size is your water main coming into house?

Commercial toilet leak - how to solve?

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