It seems to me as if perhaps you might have already nailed quite a bit of it in your post of 19th March?
Quote from Herodotus: (Histories 2.124) "For the underground chambers on the heights upon which the pyramids stand, which he [Cheops] caused to made as sepulchral chambers for himself an island, having conducted a channel from the Nile"
Interesting... "having conducted a channel from the Nile"? Not sure how that would be done, as water does not flow uphill."
Which makes the reticence against entertaining such ideas seem that much less understandable and makes them seem more like something Egyptologists should have been thinking of a long time ago.
Perhaps it would good to somehow keep the topics of water used for this purpose separate from the subject of potable water? I presume there's no need to use the drinking water for transportation of material or related purposes, so that part of your hypotheses might be reserved for explaining where drinking water came from to provide for thirsty laborers and so forth?
BTW, the subject of stepped core pyramids still seems badly mangled to me - I keep reading things about how we find fill where we might have expected stepped cores (although this may have to do with having only superficial access to the cores?) and what is supposedly academic conjecture that ramps were cannibalized for this filler material, not that that makes much sense if fill were needed sooner - but I keep getting a picture where building a stepped core slightly in advance of the flat plane they are working on might have eventually enabled some of a team of pullers that one seemingly runs out of room for nearing the summit, to perhaps relocate themselves on a step on the opposite side?
Perhaps you and cladking are both right when it comes to that?
I was also wondering if there might be any advantages to hemp or flax fibers for rope making, in either the making of the rope itself or its tensile strength. (I think I'm probably too brain dead at the minute to immerse myself in the history of rope making).
At any rate, it seems to me like you might have already developed a remarkably complete picture that is far less speculative than the status quo and may not require further technologies involving water?
Question - and apologies if it was already answered, I've only caught up with about half the posts in this thread - how far uphill would water have to go to get from the Nile to a particular pyramid? Is there elevation data of sufficient quality for that? I'm getting numbers for that with a casual search that are literally all over the place - no doubt you know this much better than I do.
A shame you mentioned running into things that still seem to be subject to military considerations, btw. It wasn't long enough ago I used to run into all sorts of troubles from GPS scrambling with just trying to obtain accurate coordinates for things. Tremendously frustrating, and very difficult to understand.
Anyway, thanks again for all the thought-provoking and beautifully illustrated materials. Best of luck with a book, I'd like to own a copy.
Ok, so the situation with the Nile water upstream, has two components to overcome. One reaching a point, where you are higher than the level of Pyramids. The other, the requirement of maintaining an aqueduct, tall and long enough, for that to be a possibility. It's low on my list of realistic options. Herodotus statement that which he [Cheops] caused to made as sepulchral chambers for himself an island, having conducted a channel from the Nile" . Unless the earth has sunk upstream, this seems remote. I do not permit readings from the past, to dictate, that which is not realistic. For me , it is purely an engineering issue.
Hemp makes very good rope. Papayas, would additionally make very good rope, as it grew 10 feet tale along the Nile. Both are strong fibers. Stepped cores (mastabas) were for pre Giza. I do not feel, this is how they built G2 & G1. I believe they built one layer at a time, and finished the Casing stones, as they progressed.
Your are correct, employing water to lift stones, would not, need to be drinking water. I have always felt the so called "barracks" behind G2 was a water filtration system, for when it flooded. Not trinket shops. They would not want mud and silt filling inside those walls. Filled with straw and replaced from time to time. If they were harvesting water, they would want it free of silt and sand, as not doing so, would only hamper their building efforts. Water Management.
I wrote to have a high resolution Satellite perform some work, though under the current Corona situations, I have not heard back. To be expected.
I have concluded, there are plenty of water pools behind the Pyramids. If you Google Earth, just look for vegetation in gullies, that are blackish and green. Use your "Clock" symbol at the top and randomly change the settings. You will see many of them fill and drain. The mechanism which produce them is somewhat complicated. Water underground fills them through crevices. In some cases, the pool of water will reach a level, greater in pressure, than the pressure feeding it. This back pressure stops it from filing. Manually drain it, and it will replenish the water. Evaporation plays a big part on those pools, more so on some than others. A study reveals a random change. This is close to the Pyramids, approx. 10 miles. I am a little late to this search, as water attracts occupation. Put up another parking lot. A new Golf Course, Hotels... The area behind the Pyramids has become a Resort location, as you progress up hill, until reaching the 6th of October City. Water is no longer an issue. 4,000 years ago, there would have been even more, "fossil" water in abundance, and closer to the surface. The AE were great ditch builders. In the picture below, I have drawn a yellow line. If you look closely, you will see others. Some have buildings close by, others are out in the barren desert.
Thank you for the interest.