Odd Sound in the Drains....

Walking the dogs yesterday I heard a strange sound coming from across the valley. It took ages to follow it as it seemed to be coming from the farm, then another direction, and so on. Eventually I tracked it to these manhole covers in the middle of a field....
I expect it's some kind of waterflow control, or something similar, but in the last few years I've never heard it before.......weird.

[@comesect]

I love how every video like this has an expert in the comments talking about alarms.

[@jacksonflowers4130]

Sorry for being late, but that is an alarm that plays when pipes are flushing.

[@PennineLad]

jackie flowers Thank you for letting me know. I don't live around there anymore, but if I ever hear anything similar....... I'll know. ☺️

[@guido7095]

why does it needs alarm when pipes are flushing? what could happen?

[@thedrainmaestro]

guido7095 when pipes get flushed water gets blasted down them so people should be cautious if they live nearby where it happens.

[@oakley-nova3619]

@@thedrainmaestro and they would DROWN

[@thedrainmaestro]

oakley-nova muahahahaha >:)

[@BritishEngineer]

To everyone saying it’s a siren: You’re incorrect,, stormwater systems are public property, and any injuries involved are at the fault of the theoretical trespassers.
Instead, this is a regulator valve that could be jammed somewhat, and the position sensors are not receiving any closed signal. The IC cycles the valve in anticipation of something being jammed inside, except it repeats. The squeaking is the least of the problems.

[@qcompressed1409]

All it is are some drainage flaps that clearly need some oiling, lol

[@PennineLad]

Thanks very much for that. I went back yesterday and the sound had changed a bit. Instead of the rhythm of the above it seemed to miss two and then squeak, maybe the flow had slowed or something. Still, I'm not quite sure exactly what it is. There is a stream nearby, 20-30 yards or so, but I can't see an obvious ingress or egress from one to the other. There isn't any obvious above ground cabinet or anything that would hint at remote monitoring, still you could well be right.

[@siouxgirl79]

it Sounds like Georgie Playing on a chain Swing

[@snickerdoodlesilva5161]

Sounds like a door.

[@caitidids1948]

Thats a sewer siren for when it flushes

[@crimsonking2908]

Flow regulator that needs oil just like the other weird sound video

[@Silly-g]

Sounds like my dog when you step on her paw

[@Haywardpowerflolx]

It sounds like large squeaky valves

[@nicolaclairejamison6800]

It sounds like a squeaky swing

[@griefinnub3745]

sounds like sick beat

[@theghostofmrcow1985]

Dinosaurs are coming back to life.🦖🦖🦕🦕🦕

[@tombstonekid3426]

it sounds like a air horn

[@vintagesimplexfirealarmsof6440]

is that very bad feed back

[@darrent6814]

Sounds like a specking. Of turtles playing in the underground tunnel

[@vierxz]

The hobos are having a concert down there

[@quantumsneak1773]

Sounds like a swing

[@oddysious]

I think a broken pipe swinging

[@imahugefanofchinamcclain7002]

Sounds like the ninja turtles just build their own sewer swing set

[@christopherjamieson8557]

If it's not a human being with play back playing it that's an actual whale inside it the Earth is cracked orca I think by sounds baby too

[@rkryukov996]

Sounds like a rusty ass swing

[@christopherholubik9983]

Do nuts

[@iDrinkYourMilkshake]

It’s an alarm because it’s so consistent