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.
“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.”
“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.”
“something was wrong with the pool that must have made swimming difficult for them at that point in time”.
“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.”
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. ……
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.
“I believe something was wrong with the pool, that must have made swimming difficult for them at that point in time.
https://elpais.com/elpais/2019/12/30/inenglish/1577696245_850864.html
The police version of events and that of the two women who survived the incident, the only witnesses, are contradictory. Firstly, there are disagreements about whether or not the victims – a man and two of his children – knew how to swim. Secondly, whether the pool’s filter system could have created a current that dragged the bathers into the deep end.
https://www.al.com/news/huntsville/2017/04/what_is_electric_shock_drownin.html
Soon the father heard the girls cry for help and jumped in the lake hoping to save them. His son Zach also jumped in to help but they, too, were being shocked by an electric current that was transferring into the water through the metal ladder.
Jimmy Johnson, who works in electronic repairs, realized they were being shocked and managed to shout for his wife to cut the power to the dock. But, Carmen Johnson didn’t survive.
“If my husband hadn’t went into the water, we wouldn’t have known what was going on,” Casey Johnson said. Because electric shock drowning typically doesn’t leave visible proof on victims’ bodies, it’s unlikely anyone would have known about the electrocution if others hadn’t been in the water and felt the shock. The electrocution can paralyze swimmers, making it difficult for them to get out of the water.
https://www.nytimes.com/2019/12/27/world/europe/spain-pool-drownings.html
Jorge Martín, a spokesman for the civil guard in Spain, said by telephone on Friday that the water was about six and a half feet deep at the pool’s deepest point.
An initial report that a resort employee who entered the pool during the episode had also struggled to get out suggested that there might have been a problem with the pool’s filtration or drainage systems, Mr. Martín said.
NEVER swim in or near marinas, docks or boatyards.