Hi. Hope you are well.

Got a quick question. I can hear some dripping sounds in the basement (there
are no pipes there) when I use the sink in the toilet on first floor. On top
of the basement we have a kitchen (below the toilet). There is no water or
damp sign on kitchen or basement ceiling or wall. What do you think it can be?

Just to let you know that the main gutter is near the basement but when we use
the toilet or bath there is no sound. Only when we use the sink you can hear
some dripping for a few minutes.

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for full context, visit https://www.homeownershub.com/mainte...g-1157136-.htm

On Wed, 24 Jan 2018 20:44:02 GMT, nhzaidi
m wrote:

Hi. Hope you are well.

Got a quick question. I can hear some dripping sounds in the basement (there
are no pipes there) when I use the sink in the toilet on first floor. On top
of the basement we have a kitchen (below the toilet). There is no water or
damp sign on kitchen or basement ceiling or wall. What do you think it can be?

Just to let you know that the main gutter is near the basement but when we use
the toilet or bath there is no sound. Only when we use the sink you can hear
some dripping for a few minutes.

Every winter my house "talks" to me due to contraction/expansions. You
may be hearing sounds not related to plumbing concerns.
Carry on!

nhzaidi m writes:

Hi. Hope you are well.

Got a quick question. I can hear some dripping sounds in the basement (there
are no pipes there) when I use the sink in the toilet on first floor. On top
of the basement we have a kitchen (below the toilet). There is no water or
damp sign on kitchen or basement ceiling or wall. What do you think it can be?

Just to let you know that the main gutter is near the basement but when we use
the toilet or bath there is no sound. Only when we use the sink you can hear
some dripping for a few minutes.

Probably normal dripping inside plastic based waste plumbing.

--
Dan Espen

On Wed, 24 Jan 2018 20:44:02 GMT, nhzaidi wrote:

Got a quick question. I can hear some dripping
[...] What do you think it can be?

Frost has built up inside the sewer vent due to recent freezing exterior
temperature. Use of the sink (& probably moreso the toilet) brings up some
warmer & moister air when it vents the sewer pipe. The inside of said vent
is frost moreso than ice, which is a fair insulator at freezing point which
is pretty much where it is.

As the new charge of air is cooled to the freezing point, it melts some of
the frost and loses some more water as well. The water runs down to the
trap without making any noise, but the overflow from the other (sewer) side
of the trap might drip for a few minutes. Because of how sound conducts
through solid piping different from liquid-filled or gas-filled sections
and/or liquid-to-gas surfaces, it is very difficult to localize the source
of the sound.


If you have an inspection port in the basement, try blowing some hot air
with a hair dryer. *** Constantly assume imminent egress of filthy-smelling
slime. ***

On Wednesday, January 24, 2018 at 3:44:07 PM UTC-5, nhzaidi wrote:
Hi. Hope you are well.

Got a quick question. I can hear some dripping sounds in the basement (there
are no pipes there) when I use the sink in the toilet on first floor. On top
of the basement we have a kitchen (below the toilet). There is no water or
damp sign on kitchen or basement ceiling or wall. What do you think it can be?

IDK, but that's some strange construction:

I can hear some dripping sounds in the basement when I use the sink in the toilet on first floor. On top of the basement we have a kitchen (below the toilet).


So, between the toilet on the first floor and the basement, somehow you've
have a kitchen. Must be what, about 4" high? Where did you find the
appliances to fit?

I ripped out my basement ceiling looking for a drip. It was my wife in a rocking chair upstairs.

On Wednesday, January 24, 2018 at 8:35:41 PM UTC-5, trader_4 wrote:
On Wednesday, January 24, 2018 at 3:44:07 PM UTC-5, nhzaidi wrote:
Hi. Hope you are well.

Got a quick question. I can hear some dripping sounds in the basement (there
are no pipes there) when I use the sink in the toilet on first floor. On top
of the basement we have a kitchen (below the toilet). There is no water or
damp sign on kitchen or basement ceiling or wall. What do you think it can be?

IDK, but that's some strange construction:

I can hear some dripping sounds in the basement when I use the sink in the toilet on first floor. On top of the basement we have a kitchen (below the toilet).


So, between the toilet on the first floor and the basement, somehow you've
have a kitchen. Must be what, about 4" high? Where did you find the
appliances to fit?

He's not in the US. In much of the world it goes basement, ground floor, first floor. First floor is what we in the US call second floor.

My guess, hot water in a galvanized waste pipe makes ticking noises with thermal expansion.