Why can I always hear water flowing through the plumbing?
Why can I always hear water flowing through the plumbing?
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deadtom

Original Poster:

2,735 posts

186 months

Monday 21st July 2025
quotequote all
Apologies for the slightly cryptic title due to character limit.

It sounds like there is a constant flow of water through the main water supply to our house; the pipe comes up from the floor in our kitchen, goes through the stopcock and continues upwards along the wall where it then disappears in the ceiling. The noise is constant day and night, whether taps are open or closed, shower running or stopped and there are no signs of leaks either in the house or garden, and no constant outflow from the only waste water pipe that is visible above ground (which is the outflow from the sink drain)

We have only been here since march and for a while I didn't think much of it for a long time because it's not loud or alarming in any way, and every time I have heard it before I just assumed a tap was running, the washing machine or dishwasher were filling etc. so it has only been in the last couple of weeks that I noticed the noise is always there. The noise stops when I close the stopcock, so I am certain that it is indeed water flowing through the pipe and not some other similar noise emanating from another source.

We rent, so we have no access to the attic so I can't go up there to see if there is a constantly overflowing water tank.

the boiler itself is an oil fired unit outside the house. I have taken the cover off but can't hear any obvious sounds of moving water, but it's hard to tell as it's a fairly big unit and full of insulation and whatnot

the hot water tank and control panel are upstairs in the airing cupboard, but given that heating is off and hot water is only on for 2 hours per day in the morning, it is, unsurprisingly, all quiet on that front.

Given that the supply is not metered and we rent I am not too panicked as it would be someone else's problem to deal with even if there is a leak, but should I be contacting the landlord about it, or am I missing something obvious and it's normal and correct for there to be a constant flow of water into the house, but seemingly nothing flowing out again?

fttm

4,279 posts

156 months

Monday 21st July 2025
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You have a leak .

AC43

13,188 posts

229 months

Monday 21st July 2025
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Yeah sounds like a leak. I have an irrigation system on the balcony outside the room I use as an office. When it kicks in I can here water flowing through the pipework in the house. When It stops, silence.

Simpo Two

90,790 posts

286 months

Monday 21st July 2025
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deadtom said:
Given that the supply is not metered and we rent I am not too panicked as it would be someone else's problem to deal with even if there is a leak
Good bit of responsible citizen there. Maybe you'll care if the ceiling falls on top of you.

deadtom said:
but should I be contacting the landlord
Yes obviously!

Chimune

3,933 posts

244 months

Monday 21st July 2025
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Toilet ? Close the water feed to the cistern and see if it stops.

Ham_and_Jam

3,288 posts

118 months

Monday 21st July 2025
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Chimune said:
Toilet ? Close the water feed to the cistern and see if it stops.
^^^ good shout

Chumley.mouse

855 posts

58 months

Monday 21st July 2025
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Simpo Two said:
deadtom said:
Given that the supply is not metered and we rent I am not too panicked as it would be someone else's problem to deal with even if there is a leak
Good bit of responsible citizen there. Maybe you'll care if the ceiling falls on top of you.

deadtom said:
but should I be contacting the landlord
Yes obviously!
Pretty sure if it was i leak in the ceiling ( or house ) and it had been running since march then it might be noticeable by now ?

If it is a leak then i has to be underground or it would have come to light by now , even in a toilet.

Could it be a shared pipe ?

In our first house we shared a supply with next door, it came to our house first then went across to the neighbours. If they used water and it was very quiet in our house you could hear the noise through the pipe. Still not sure why it would be running all the time though ?

sooty61

735 posts

192 months

Monday 21st July 2025
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Do you have access to the water meter (if there is one)? Does the little wheel spin when everything is off?

Andeh1

7,454 posts

227 months

Monday 21st July 2025
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Sure it isn't Guttering?

InformationSuperHighway

7,306 posts

205 months

Monday 21st July 2025
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sooty61 said:
Do you have access to the water meter (if there is one)? Does the little wheel spin when everything is off?
This will be the biggest tell.

If this is spinning and you hear water.. but you don't know where that water is going... you (Your landlord) has a major problem.


I've had this a couple of times in my house, and every time it's a leak causing damage somewhere.


fourstardan

6,134 posts

165 months

Monday 21st July 2025
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InformationSuperHighway said:
This will be the biggest tell.

If this is spinning and you hear water.. but you don't know where that water is going... you (Your landlord) has a major problem.


I've had this a couple of times in my house, and every time it's a leak causing damage somewhere.
Don't worry the bill is landlords problem...lol

finlo

4,095 posts

224 months

Monday 21st July 2025
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Chimune said:
Toilet ? Close the water feed to the cistern and see if it stops.
This, modern bogs overflow into the pan and is not always obvious whereas the old style overflows were more noticeable.

InformationSuperHighway

7,306 posts

205 months

Monday 21st July 2025
quotequote all
fourstardan said:
InformationSuperHighway said:
This will be the biggest tell.

If this is spinning and you hear water.. but you don't know where that water is going... you (Your landlord) has a major problem.


I've had this a couple of times in my house, and every time it's a leak causing damage somewhere.
Don't worry the bill is landlords problem...lol
The water bill or the rebuild of the house when it causes enormous damage hehe

Either way, as a tenant they shouldn't sit on this and ignore it.

deadtom

Original Poster:

2,735 posts

186 months

Monday 21st July 2025
quotequote all
Simpo Two said:
deadtom said:
Given that the supply is not metered and we rent I am not too panicked as it would be someone else's problem to deal with even if there is a leak
Good bit of responsible citizen there. Maybe you'll care if the ceiling falls on top of you.
I was not being entirely serious. Perhaps I should have added a smiley face.

I had another good listen around the house and in fact the noise is also audible in the upstairs bathroom, but is not the toilet cistern or the shower (and the shower is electric so I can't blame a damaged mixer unit)
.It may be a shared supply with next door as it is a semi detached property, but that still wouldn't explain why it is constant at all hours of the day.

If it is a leak, it must just be draining out again as there are not signs of damp anywhere.

Chimune

3,933 posts

244 months

Monday 21st July 2025
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Not doubting you, but did you isolate the toilet via the refil pipe ?

Macneil

1,054 posts

101 months

Monday 21st July 2025
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Have you turned off the supply at the stopcock to see if the noise stops?


Brinyan

479 posts

114 months

Monday 21st July 2025
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If you’re unable to get into the loft, contact the landlord to get access - probably a water tank filling & overflowing - overflow pipes aren’t always visible - could be onto a flat roof, into a gutter etc.

Cotty

41,721 posts

305 months

Monday 21st July 2025
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Macneil said:
Have you turned off the supply at the stopcock to see if the noise stops?
deadtom said:
The noise stops when I close the stopcock,

Brinyan

479 posts

114 months

Monday 21st July 2025
quotequote all
If you’re unable to get into the loft, contact the landlord to get access - probably a water tank filling & overflowing - overflow pipes aren’t always visible - could be onto a flat roof, into a gutter etc.

scot_aln

658 posts

220 months

Tuesday 22nd July 2025
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It still shouldn't be heard running all the time but you do not have a water softener do you? When it does it's various cycles it runs water even though you haven't manually done so.