"If the tank is in 2 half in height it amounts to having one tank higher than the other as I said above.
I open a tap of the tank in the upper left and I empty in the tank bottom right.
100% is transferred!
I remain to say that this thread is useless. "
Indeed it is exactly that except that I make almost all the water come down whereas it will only need me a fraction to start again a cycle, and that is the difference, but I understand that it seems the same, yet it is clear that this is not the case!
If you open a tap, yes very fair, everything is transferred, but there is a big difference because if you want to start again, you will have to go all the water, which is not the case in the idea departure.
I understand that it seems so simple that we can say, well it's useless if I want to drain I leave the tap down open, and hop I put a turbine and I take advantage of the potential energy of all or part (less friction and efficiency of the turbine).
except that with this system, and a tiny fraction of the water I can start a cycle again.
Also even if I do not top up I can also start a cycle (with losses) a number of times, and if the system is buried, only a fraction of the water will be needed to top up.
Honestly, I think there is a big difference between draining a tank in one faith and this system.
After, I also understand that the pressure is divided by as many tanks this is true but with floats why not.
But this principle is a basic principle, and finding another way to do it could yield an interesting return, but there is a research work to be done for sure.
Kind regards.