[jintsy]

Well water you gonna do?

[achyman63]

The final spin cycle

[echonovember]

Originally Posted by bigmomma ↗

what kind of chithole country has something like this OPEN TO THE PUBLIC like that????

i guess they don't care aobut life there.

You'll see plenty of this effect in the US, as there are literally thousands of low flow dams, a surprising number of which are not maintained, and are unmarked.

While this one is in a "modern" drainage system, there are plenty of older examples from the 19th century that have fallen out of use.

[echonovember]

Originally Posted by houseoftechno ↗

In another post, it was advised to roll up like a ball to escape a standing wave. I don't know about that. I would dive underwater and swim powerfully downstream, skimming the bed, to escape a standing wave. The current is going to be moving downstream at the base of the channel, and that is a good way to regain your orientation after being shloshed around in a hydraulic: Dive to the bottom and follow the current out. Swim like hell.

But how do you know which way is downstream?

The disorientating effect of the vortex cannot be understated, and I can speak from personal experience just how impossible it can be to self orient in such a situation.

To clarify, this was a training exercise, I was in full SCUBA gear, and the waterway where we were training had been cleaned of debris prior to us going in.

The instant I entered into the vortex, I was flipped along every axis. It was damn near instant, and even impacting a surface (might have been the bottom, might have been the drop or the side, I have no clue to this day) was a momentary bit of sensory information, and there was no time to orient myself before the vortex pulled me away.

The only real inkling I had of up and down came from the tension on my safety line, but most people aren't going to have one of these...or 5 colleagues keeping an eye on them if things go south.

Compressing yourself into as small a volume you can is the recommended action.

One guy in my team had to ditch his fins while in the vortex, as they were creating too much drag for him to be ejected from the vortex.

...to be honest, it was a blast, and one of the most unique underwater experiences I've ever had.

Experiencing it without my gear?

Faaaak no!

[Dr_Jackal]

They saved that kid's life and gave their own. It also looks like the one guy could've saved himself at the end but he went for his co-worker again. RIP, heroes.

[depraved1]

For cheap, vertical water-grates can be placed!
They are for this very reason.
Many places in Europe and NAmerica have them in drainage canals and water run-offs.

[Gertcha!]

Originally Posted by foxfantastic ↗

KC posted a comment (in ching chong ching chong language) that purportedly suggests that everything turned out alright (ie, everyone survived).

I prefer to cling to that news like a life preserver

Both the heroic cops perished unfortunately https://usacrime.com/china-two-offic...d-water-canal/

[Gertcha!]

Originally Posted by minka1 ↗

Saw this on Reddit. Included a clip of at least one officer alive and well. OP said both cops survived.

Nah… Would have been very unlikely to survive that and sadly, they did not https://usacrime.com/china-two-offic...d-water-canal/

[gimlet]

Originally Posted by depraved1 ↗

For cheap, vertical water-grates can be placed!

Water-grates are cheap, but life there is cheaper!

[RollOnWheelie]

I did a paper on low head dams years ago. Reminded me a bit of that effect. Deceptively dangerous!