I have a mystery suction cup noise in my house, I can't figure out what it is. Guesses are welcome......

Does it happen when you run water down the drains?

I ask because in my mansion, yes, mansion...lol when I run water in the kitchen and my bathroom, I get serious tapping sounds from the drain lines about four to six feet from the sinks.

Strange it is...... Even my plumber is like

no clue.

one-story or two-story house? if 2 stories, it could be something in between the floors.

how often do you hear it?

when you hear it, does it repeat itself?



I had a strange sound in the house, almost like a sobbing, moaning sound from the bathroom. I heard it clearly. one story house. around 4 am. A ghost in the toilet??

When I went to get the newspaper hours later, I saw we had a colossal water main break! Water all over the road, fast-moving.

another night weeks later - same sound, and this time I looked outside. Water main break.

Got so I called the water company emergency number any time I heard the moaning toilet sound. They thought I was insane until they checked - water main break right in my neighborhood.

and then they cited me for messing with my water meter!

AS IT TURNS OUT, every time there was a water main break in the neighborhood, my pipes had the water sucked out, causing the "moaning" sound.
It also caused my water meter to spin backwards, making me have a ridiculously low water usage.

Well all was solved. They realized I had not tampered with the water meter.

Check to make sure your toilet is bolted down to the floor. Could be a loosened wax ring seal

At least the water went out. No ghost. You did ok. :)

It is a one story house. I hear it randomly when I go to sleep, maybe a couple of times in a half hour. It doesn't repeat regularly. But I do hear it almost every time I go into the room.

Maybe this will help, it is an inexpensive house, cheaply built. Ya, I bought it anyway.

I had a similar "suction cup" sound in my house and it baffled me for a couple months because it was so infrequent.

As it turned out it was the refrigerator, where some metal panel buried in it's walls was flexing whenever the refrigerator went through a temperature cycle.

In your case, it could also be some metal object either in your heating system or directly near the heating system that is going through a heat distortion and making that sound as the temperature fluctuates.

Might be hvac related. Does it happen when heat / ac turns on/off?

call and report could be pressure in a pipe or leak hitting something metal , good luck

Is your significant other scaling the house, dressed as spider man?

Is this a constant noise ore a once in a while thing?

Acoustics can be funny things. The noise could be originating from the attic but sound like it's coming from the walls or even the floor.

Interesting...

Does it happen when you run water down the drains?

I ask because in my mansion, yes, mansion...lol when I run water in the kitchen and my bathroom, I get serious tapping sounds from the drain lines about four to six feet from the sinks.

Strange it is...... Even my plumber is like

I love noises. Since I'm going deaf any noises are awesome!

Did you get a Samsung Galaxy recently?
The default "incoming text" sound is exactly that.

Sounds like a dripping noise. Is it easy to hear outside noises through your windows? Most noises are caused from expansion and contraction of water pipes or forced air heating ducts beginning or during and right after operation. Such as domestic hot water line being used or a gas furnace firing up. I have also heard that sound from an empty pop can.