Update: Spain pool 3 dead: Reports and investigations a shame. For sure electrical accident, all else can be ruled out. Hydromechanic professor proofs “poolexpert” wrong

07.05.2020

Still all reports about the pool tragedy on the 24.12.2019 are absolutly nonsense, not regarding the clear and obvious reason of the tragedy:  Electric current in the water, enough for paralysing the muscles, but not enough to be seen in a autopsy, there the only result is: drowning.

The last thing we heard about the case is this

In green color I marked the important informations to understand the case. Theseinformations we had since day one.

Then came the wrong interpretations by experts who did not understand the case.

One of them is Allen Wilson.

https://www.euroweeklynews.com/2020/01/03/residents-in-spain-agree-swimming-pool-expert-should-should-be-flown-in-to-examine-where-family-of-three-drowned/#.XleynJMzbyI

He strongly believes that someone on duty at the pool at the time may have turned off skimmer overflows that essentially causes an overpowering suction vacuum – pulling things towards it and making it almost impossible to escape from, as backed up by family statements and witness accounts.

https://www.thesun.co.uk/news/10659181/family-drowned-costa-del-sol-pool-died-human-error-expert-claims/

“The pressure of suction and current becomes enormous and when it starts dragging water in the pool towards it there is often no escape unless the pump is turned off manually.”
“Swimming away from the current becomes very, very difficult if not impossible once it gets you in its grips.”

This is definitely wrong, from a pump in a pool there is NO such watercurrent that influences a swimmer or someone walking in the pool. What Wilson said, was like a lie, this is definitely not true.

There is a vacuum when you get near and block the drain like this

But there is NOT such a water current through the pool that could have caught the victims and dragged them from the side to the middle.  NO NO NO

THIS IS STUPID NONSENS by Allen Wilson and his followers.

Wilson is an expert for building safe waterparks, but not for reconstruction of an accident like this .

On Wilsons own website he is showing the right thing in the following picture, where it shows a danger zone for divers around the drain

So the picture from the firm MSI about a diver directly near the drain, shown on the own website of Allen Wilson is CORRECT.
But not what Wilson tells the media about a swimmer, this is BULLSHIT

https://www.thesun.co.uk/news/10659181/family-drowned-costa-del-sol-pool-died-human-error-expert-claims/

“The pressure of suction and current becomes enormous and when it starts dragging water in the pool towards it there is often no escape unless the pump is turned off manually.”
“Swimming away from the current becomes very, very difficult if not impossible once it gets you in its grips.”

This is BULLSHIT

And its easy to PROOF this.

Its about this pool.

The girl entered the pool by the steps. Then soon the mother saw something that seemed to her as if the girl was dragged to the middle.

https://www.google.com/search?client=firefox-b-d&ei=JxXeXsXXIsv9kwXw8Bo&q=%22something+was+wrong+with+the+pool+that+must+have+made+swimming+difficult+for+them+at+that+point+in+time%22

“something was wrong with the pool that must have made swimming difficult for them at that point in time”.

This was simply the slope of the pool that “dragged” , in addition to the fact that she could not resist because she was paralysed by electric current.

Now I proof, that what Wilson tells the media about the pressure of suction to a swimmer is BULLSHIT and that the only explanation for the accident is electric current.

Here you see that the pool is around 15 m long and around 10 m wide.

In the middle the pool is 2 m deep.

The following calculation is generous in such a way that all values are increased in such a way that ultimately a greater suction would come out, i.e. first more water volume of the basin, resulting in a stronger pump. If there is no relevant pull with these values used, then certainly not in reality.

When  we calculate the whole pool with a depth of 2 m  we  get a much larger volume and are on the safe side of the calculation, even if the Pool would be 2m wider than 10 m,   so we calculate the volume of the pool with  15 m x 10 m x 2 m = 300 m³
This helps in the further calculation to get a quick overview even without calculator.

The dimension of a pump is calculated  like this:

To get a easy calculation without calculator, lets use a very short circulation time of only 3,3 h,  3 hours and 20 minutes

So in 3,3  h the whole pool with 300 m³ would be excanged one time. This means 1 h  there will be 90 m³ excanged, or 90.000 liter.

So for one second this means 90,000 liter / 3600 seconds  =  25,00 liter/sec

Now we need the continuity equation.

https://en.wikipedia.org/wiki/Continuity_equation

Now think to A2 as to be the area of the pipes of the pump: For examples if the pipes would have an area of 100 cm² the “piece of water” that runs throught the pipe in one second would be 250 cm long, because 100 cm² x 250 cm = 25000 cm³   = 25 liter

But now remember this red  hemisphere

First me must calculate now the area of this hemisphere

Lets look to a distance of 2 m around the drain, because the water is 2 m deep, so we know how the situation is directly above the drain.

So lets look at a hemisphere of 2 m radius.

This means 2 π r² =2 π (2m)² =  25 m²

So the area of the  hemisphere would be 25 m²

And now we have to look, how “high” the water would be, if you distribute 25 Liter on an area of 25 m^{2  ,}  h”how high” would it cover this area, or how long is the distance that you have to multiply  a  area of 25 m with,  that you get a Volume of 25 liter?

25  liter = 25.000 cm³ = 25.000.000 mm³

25 m² = 25.000.000 mm²

25.000.000 mm³ /  25.000.000 mm²  = 1 mm

This means: In the distance of 2 m around the drain, the water flows with a speed of 1 mm per second in the direction of the drain. In 10 seconds only 1 cm

But even a 9 year old girl can swim faster that 1 m per second.

A child can swimm a thousand times faster than the suction of the water would cause the water to flow in a distance of 2 m around the drain.

Only directly above the drain, may be less than a meter or 50 cm, the suction gets more and more dangerous, exactly how Wilsons own websits shows it in the picture of the red dangeous area around the drain, danger for a DIVER, not for a swimmer.

And in addition to this:

The mother saw the girl as she would beeing dragged, much before she was near the drain.

So more far away from the drain, the influence of the suction get even less important, not 1 mm in a second, but may be  only  1 cm in a minute

This is showing, how ridicoulous is what Wilson was fantasizing

https://www.thesun.co.uk/news/10659181/family-drowned-costa-del-sol-pool-died-human-error-expert-claims/

“The pressure of suction and current becomes enormous and when it starts dragging water in the pool towards it there is often no escape unless the pump is turned off manually.”
“Swimming away from the current becomes very, very difficult if not impossible once it gets you in its grips.”

Here I showed it in detailt, but every real expert with a clear mind can see and say at first appearance, that there is no relevant influence to a swimmer even if the whole capacity of such a poolpump works on the bottom of the pool.

Because there is so much scope in the calculation, for example when little children can swimm a thousand times faster than the calculated current that would appear, that  there is so much scope for also a child, that can not swimm very good.  Therefore the result is clear:

By far, by very very very far, there is no relevant suction to a swimmer by a poolpump.

And because its so by very very very far, its ridiculous what was published  and believed by the public. Even common sense would have been enough to detect the nonsense Wilson was telleing to the world.

Wilson wanted to help the family by dramatising what he thought was the real reason, but because he did not realize that electric current was the reason, he was dramatising against common sense.

Wilson was not an expert for reconstruction, but a total loser on this field. Wilson was a man, who gave good advice how to build save pools and he wanted to help victims. That is good, but here he did a terribble mistake that did not help anyone.

I myself am a universal-genius on every field where logic is relevant, but on the other side I am a poor guy with no money, helping the elite of the world to get their brains in order an their common sense back.

No one pays me for my work here  but look what a european professor in the science of Hydromechanic answered me in this case, before I calculated it myself:

Von: Prof. Dr.-Ing. ….F. …….
Gesendet: Donnerstag, 4. Juni 2020 18:47
An: ‘Klaus Fejsa’;  …….
Cc:  ….

Betreff: AW: wie mit Dr. ……. telefonisch besprochen

……..  A detailed statement about the flow conditions in swimming pools is  without knowledge of the individual conditions (pool geometry and dimensions, number of inlets and inlet cross sections, number of simmers / suction devices and their cross sections, pipe system and pipe cross sections, pump outputs, pump control, etc.) also for a specialist not possible. Generalized statements in particular will always remain purely speculative and are therefore not possible for us in this complex case.

If you would like an expert opinion on the flow conditions in pools for an individual case or for several cases, we will be happy to provide you with information on the information and data required as the basis for the investigations, as well as the expected costs. Such investigations are very complex and should be planned and carried out very carefully, especially against the very serious background of the question and the possibly resulting consequences, in order to ultimately obtain well-founded and reliable statements. I think you see it the same way.  ……

This it not OK, the space, the scope her is so very very big, that there is no need for such sort of complitation. You dont have to fly to spain, measure every detail and in the end get a result, that a child can swimm 1526 times faster than the ridiculous water current in this case. Or only 895 times?

This does not matter, here its a question about scales, about magnitudes and not about peanuts, so I wrote back:

Dear Prof. Dr.-Ing F….,

Thank you for the answer, I would like to answer with an example:

If a rocket-experienced alien from the science-fiction world were to look at the earth with the telescope and see the car traffic there and that it was smoking behind, he would surely think that the physical recoil principle also provides the drive here like a rocket.

But no, wrongly thought, space alien, although the recoil from the exhaust has a small impact on the drive of the car in the direction of travel, but this is COMPLETELY negligible compared to the torque that the engine brings to the road via gears and tires .

Since 2019, all the media and the public have been in a similar mental derangement about this case, except me. And as long as the truth is being obscured, prevention and future security suffer in addition to the enlightenment, this is a continuing danger. DANGER TO LIFE, possibly even from this same pool but surely from similar ones.

In this situation, your answer is only  complicating the subject into an ivory tower of alleged scientific seriosity, instead of simply going into the magnitudes and telling clearly and understandably in a single sentence , namely:

Although the recoil from the exhaust has a small impact on the drive of the car in the direction of travel, this is VÖLLIG negligible compared to the torque that the engine brings to the road via gears and tires.

With what you pretend to be serious, you are doing nobody a favor, nobody, not even yourself or “science”. This is not about numbers behind the decimal point, but about scales,  orders of magnitude that have in the case of the pool drama so far been so brutally misunderstood as by the space alien. And it’s about the resulting danger, while here you have to measure yourself and calculate where the result is clear from the outset, as in this example of the alien, the exhaust and the movement of a car.

THIS WAS TO A “BAD EXPERT”;

THE “GOOD EXPERT” (WHOM I MET LATER) I MENTIONED IN THE BEGINNING OF THE ARTICLE