Two main observations; Thank you to the RU-vid gods for this incredibly random recommendation this afternoon. Also it is slightly scary to think that as they say in the video it’s very rare big pools are ever emptied and cleaned thoroughly in this way. That’s a bit worrying when you think about what some swimming pools must be like, no wonder they pump loads of chlorine into them! It was a bit disturbing seeing all that dirt when he used the pressure washer on the tiles!
Well if you think about it’s a large task that cost 1000s (probably 10s of thousands) to do. Chlorine isn’t the only thing to clean the pool they have filtration systems and UV sterilisation systems
They drained the pool where I used to live once. Half the tiles fell off and it was shut for two years while they fixed it. It kept leaking every time they refilled it.
That swimming pool design is so unattractive and creepy Those dark wave pool grates with the ceramic cover of the pool, weird creepy underwater lights, that place would be a nightmare fuel if it’s going to be totally dark
@@jamestaylor8324 others are just not smart enough to realize how much force does the water actually have (delta p). Besides it’s a pretty reasonable fear, why would you swim up to the dark underwater opening which makes sound and also propels/intakes water?
To be honest, the pool was probably built in the 80s or 90s, before people were so easily scared. As a society, we're kind of circling back to a mini dark-age. Basically, if we don't understand something, we call it creepy and scary.
You should seen Letchworth LC back in the 1980s, the wave machine apparently had black bars which people used to break and swim inside the wave machine chambers. They used to swim up to an air pocket at the top of the chambers and breathe in there. Many people who did this certainly feared of being killed in there. The pool in Letchworth is identical to this one.
The indoor pool at my city would need such a cleaning too. All schools in the area go there. At the waterline you can see a lot of mold, like when you leave out spread cheese for 5 weeks. Just disgusting.
I mean I get it, but just push everything twords the bottom with a garden hose and call it good. Chlorinated water should do the job steam cleaning will.
It is "recycled" by being processed through the water treatment plant. Any chemicals and contaminants are removed before being put in a river to flow to the ocean. The water evaporates from the ocean, collects as clouds, and falls into the lakes or rivers that supply the water to the town and back to fill the pool. The water cycle is an amazing recycling system, and no water is ever "wasted" when it flows down a drain.
@@z185284 Either that or the building was built on the cheap including lack of a properly sized water main to feed the place. The pool at my old school has a 3 inch main. This thing must be filled with a garden hose.
@@johnrauner2515 Normal speed in pipes should be around 1,5-2,5 m/s. If you use 3 inch pipe this way, it takes 25 hours to refill this pool. If you wants to destroy your pipes, the maximum is 2 times faster (it's not safe to do that, it isn't te same as in firefighting with 1,2m3/min...), so it would took arround 12 hours. The main reason is allowed capacity of city grid. 900 m3 is a lot of water on EU.... In CZ it's daily consumption of cca 8 000 people. Half size of olympic is cca 1870 m3. Unless you are in really big city, I dont believe you would be allowed to suck this from municipal grid. That's 260 l/s (68 gal/s), required pipe diameter arround 14 inch pipe in building and 25 inch city main only for the pool. So no sir, I as a water management engineer don't believe you can fill half olympic pool in only 2 hours by one single 3 inch main...
@@filipmecir262 Well that's a concise answer if nothing else. Here's the pool I'm talking about. And I have seen it filled in 2 hours. facebook.com/photo?fbid=10164966351480355&set=pcb.10164966351560355 The filter pump and circulation pipe under the pool is 3 inch. In 1985 when I was 15 the pipe under the pool broke just beyond the end of the pool at the far end of this photo. The pool emptied in less than an hour. And that was only gravity fed out of the pool. It was not being pumped in under pressure from a main. So if gravity can empty it in an hour from the same size as the fill main, then it's pretty obvious it can be filled in 2 hours under pressure from a main.
@@johnrauner2515 Well, maybe physics in this pool takes vacation. :) If you would like to press 1870 m3 through 3 inch pipe in 1 hour, velocity in pipe would be 117,6 m/s. Thats simple math - Volume/area of pipe crosssection/time = flow velocity. That's 423 km/h (265 miles/hour). That's quite unlikely to occur by gravity itself. Are you sure it was only 3" pipe? It's frankly small for such big pool. In home pools you ussualy use 2" pipes.