Is there really any credence to the theory that the pyramids were constructed using primarily water, as in this video, or are there any obvious omissions or contradictory pieces of evidence not put forth or expounded on in videos like these, that would render the theory busted?
I ask mainly because the theory seems sound, but after watching videos debunking claims made by "documentaries" like Ancient Aliens I get a little skeptical when learning about such new theories, due to possible bias by the makers of such videos and supporters of the theory.
Managing the Water:
The perimeter wall is about 10m away from the Great Pyramid. With a side length of 230m the basin would have a water surface of 9,600 m².
The daily mean temperature is 21.38°C, the average relative humidity 56%.
That means at the very least 1,200 kg/h evaporate (no wind), 4,000 with a light breeze (3 m/s), 5,750 gentle breeze (5 m/s). Wind in Cairo varies from 0-7 m/s.
Conservatively, 100 tons of water would have to been carried half a kilometer per day just to maintain the water level in the basin at the bottom (evaporation alone).
Additionally whenever a stone is floating up the pyramid its volume in water would have to be replaced at the top.
Furthermore, the pyramid casing, core and plateau are out of limestone which is water-permeable.
To sum it up: Keeping an adequate water level alone would have been more work than building the entire pyramid using ramps.
Not to mention the difficulty keeping the shafts dense, dealing with blocks getting stuck, working for prolonged periods in water, attaching and removing flotation devices from multi-ton stones in murky water and keeping them afloat.
It also requires more resources in labor and materials, is more difficult to maintain and operate and is not supported by any evidence that would lead one to conclude this is a probable or even possible hypothesis.