331–340 of 344 posts
I was working outside yesterday afternoon and this humming was driving me insane. I thought it was some instrument at a monastery nearby. I can’t believe it’s the bridge.
Spat out my drink at this comment.
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Not a hammer sound, absolutely. An humming, thrumming sound. Rises and falls and a trailing off with a duration of 5 seconds.
Huh, that is weird. Pressure equalizing though some loose valve or something maybe? Can you feel vibration too or is it just sound?
Live on an acreage, and the outside hydrant is mine by the garden. Right by the well, which is a tube extending 111' straight down to a submersible pump.
In the utility room, the water service comes into a pressure tank. We just replaced the tank, and the sound began after that. The plumber insisted it was unrelated. Maybe a relief valve there would help...just a guess.
We just live with a very loud sound at our house. Run water for any reason. When you stop, some 0-15 seconds later an enormous sound reverberates thru the house. Plumber says its 'water pipes growing or shrinking, rubbing against the straps'. But it goes on for 10-30 seconds. No water pipe in the world moves that long/that much?
Could it be a drain pump noise propagating? Does it happens even when you don't send the water in the drain, but in a bucket?
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https://xkcd.com/2305/
It looks like you may have misunderstood what I was saying. The polls pictured that linked to say America is united to defeat coronavirus even at such a high cost. My argument is that this price that nets us these wins of peace, quiet, reduced pollution, etc etc comes at a price that society would not sustain past this crisis.
FWIW, my big hope is that we can reconfigure our economy to work without conflicting with those wins. (The climate is still changing, so we have to reconfigure anyway.)
I'm just glad they identified the source of the hum, many people are impacted for years by unexplainable sounds, and it is maddening. It took me and my neighbours a month to find the source of a hum that was resonating with our windows. It was torture, with midnight walks and lurking around potential sources, mapping nearby industrial sites, and questioning our sanity, while our windows were vibrating without a stop.…
Reminds me of a prank that some co-workers pulled off: they bought some gadgets that would make a cricket sound but at random, irregular intervals, and hid it in a person's office. It drove that person insane as they slowly and methodically moved all pieces of furniture out of their office.
I tried making a spectrogram: https://twitter.com/nibot/status/1269347206445756416 I tried using baudline[1] (a 20-year-old program!) but it didn't work out-of-the-box on my current Linux installation. Instead I found something called Sonic Visualizer[2], which, while not real-time, worked out of the box. Using Pulse Audio 'pavucontrol' it was easy to configure Sonic Visualizer to use as its input the 'monitor' chann…
Baudline is awesome, thanks for the TIL! What errors are you getting? You're right it doesn't work OOTB, I needed to fiddle with it a bit.
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If its water hammer (as it sounds like it is)-- it can fatigue joints and valves and cause leaks over time. Water hammer can be fixed by putting hammer arresters at the right locations.
But - every tap in the house causes it! And the toilets. And the shower. And the outside hydrant. Where would we put such a thing?
It might be in your case that water hammer is triggering an oscillation in ... something. A valve, pipes that arn't strapped down?
There could be a dead end in the system (essentially a hammer arrester) that is full of air which water is sloshing into and shaking in the process.
What I think I'd try to do is isolate the cause. E.g. if you turn off the service valve into the house can you trigger it by opening and closing the hydrant?
Maybe you are triggering a _pump_ upstream from you?
In any case, if pipes are shaking or the pressure is obviously spiking then it increases the risk of failure... so it's not something that I'd personally want to ignore.