Unique dripping sound in toilet

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edee_em

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Came across this problem recently: When waste is introduced into the toilet, a dripping sound starts (from the toilet, not the user ;-)). Waited for the tank to start filling but it never fills leading me to believe that the water level in the tank is not affected. It seems that as the level of water in the bowl is raised by the waste there is water flowing (dripping sound) from the bowl end of things. Any thoughts on what that is all about?
Toilet is Toto Ultramax II, one piece design.
 
As you add tothe bowl of a toilet, whether it be liquid or solid, it displaces some of the water already in there, which goes over the toilet weir and down the drain.
I've never heard it though.
toilet-cut-out-diagram.jpg
 
As you add tothe bowl of a toilet, whether it be liquid or solid, it displaces some of the water already in there, which goes over the toilet weir and down the drain.
I've never heard it though.
View attachment 21016
Totally makes sense. Given that, it's not a problem that needs any attention? It's just like you said, never heard this before.
 
Totally makes sense. Given that, it's not a problem that needs any attention? It's just like you said, never heard this before.
If you are hearing water dripping, my guess is that it is not water going over the weir. I would guess that any dripping sound would be coming from something in the tank.
 
If you are hearing water dripping, my guess is that it is not water going over the weir. I would guess that any dripping sound would be coming from something in the tank.
That was my original thought Jeff, but as I kept thinking (dangerous thing to do for me) I thought that if it was tank water making the noise, (a) wouldn't it be happening all the time? That is, why is it only happening when the toilet is being used? and (b) at some point, wouldn't the tank call for water if some is dripping out?
 
The fill valve will not call for water until a significant amount of water is drained down. To prove that, lift your flapper a little, and notice how much water flows out before the fill valve opens.

Just a thought, but, when the tank is full, how close is the top of the water to the overflow pipe? If close to the top 9five the pipe, is it possible that the shaking of the tank and/or toilet is causing water to drip down the overflow pipe. The water level should be about an I checked below the top of that pipe. I know this is a long shot, but it is all that I can think of.
 
The fill valve will not call for water until a significant amount of water is drained down. To prove that, lift your flapper a little, and notice how much water flows out before the fill valve opens.

Just a thought, but, when the tank is full, how close is the top of the water to the overflow pipe? If close to the top 9five the pipe, is it possible that the shaking of the tank and/or toilet is causing water to drip down the overflow pipe. The water level should be about an I checked below the top of that pipe. I know this is a long shot, but it is all that I can think of.
The water is well below the top of the overflow. That's what makes this a curious, unique problem.
 
The fill valve will not call for water until a significant amount of water is drained down. To prove that, lift your flapper a little, and notice how much water flows out before the fill valve opens.

Just a thought, but, when the tank is full, how close is the top of the water to the overflow pipe? If close to the top 9five the pipe, is it possible that the shaking of the tank and/or toilet is causing water to drip down the overflow pipe. The water level should be about an I checked below the top of that pipe. I know this is a long shot, but it is all that I can think of.
jeff you just gave me a thought......sometimes when an overflow tube is cracked the water will leak thru also OP you should shine a flashlite down that tube maybe dye the tank see what happens
 
jeff you just gave me a thought......sometimes when an overflow tube is cracked the water will leak thru also OP you should shine a flashlite down that tube maybe dye the tank see what happens
Sorry for the delay. Wanted to give dyed tank a chance to dribble into bowl. No dyed water from tank in bowl. No crack in fill tube. Today, I took a glass of water and filled the bowl without sitting to see if pee would cause issue and it did. Can clearly hear water dribbling/dripping through trap way. Wondering if I'm hearing it because I recently renovated the bathroom and insulated the walls with sound barrier insulation given the central location of this particular bathroom. Any way, the mystery continues.
 
Something to think about... Had to track down the same thing. Nothing made sense. Eventually noticed that the end of the fill hose from ballcock was just shoved into the overflow, which put the end lower than the water level in tank. Shouldn't be a problem right? But some, will gently siphon water through the ballcock out the hose (hence the drips) It was just slightly below the full fill so would stop before triggering the refill. So I always use the little plastic part that comes with the new fill valve so the hose is above the overflow.
 
Something to think about... Had to track down the same thing. Nothing made sense. Eventually noticed that the end of the fill hose from ballcock was just shoved into the overflow, which put the end lower than the water level in tank. Shouldn't be a problem right? But some, will gently siphon water through the ballcock out the hose (hence the drips) It was just slightly below the full fill so would stop before triggering the refill. So I always use the little plastic part that comes with the new fill valve so the hose is above the overflow.
Great tip Housedoc but my fill hose is where it is supposed to be. Came with clip from factory and fill hose is well above water level.
 
You might want to try getting a stethoscope and placing it on different areas of the toilet to see if you can positively locate the sound.
 
You might want to try getting a stethoscope and placing it on different areas of the toilet to see if you can positively locate the sound.
I'll ask my doc if she has an extra lying around but it might be easier to bring in a Catholic priest to perform an exorcism!! ;)
 
You can get one at an auto parts store (mechanics use them often) , or even get a kids one at a toy store.
 
I have the exact same issue that you have described and I to recently remodeled the water closet. I’m wondering if this issue has something to do with resetting and replacing the drain line for the toilet. Did you reset your toilet during your remodel?
 
I have the exact same issue that you have described and I to recently remodeled the water closet. I’m wondering if this issue has something to do with resetting and replacing the drain line for the toilet. Did you reset your toilet during your remodel?
Sorry to hear about that dyoung but, to me, it is not a big deal. There isn't any water dripping from the toilet and everything flushes as it's supposed to. It's been over a year and I guess I just got used to it.

To answer your question, I did buy this toilet new for the reno so yes it was reset but I did not need to replace the drain line. I did replace the flange, but that was it. As I mentioned originally, I believe insulating the space just lets me hear more than I ever have.

The only advise I can really give you is something you probably did: make sure the toilet is sitting level, especially front to back. There doesn't seem to be much clearance in the weir area of these toilets so a toilet that is leaning back slightly may add to water dripping over the weir. Good luck!
 

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