Hello,
I have not seen the video in question, but this debate is really interesting. My humble comments:
- setting a fine toothed saw properly with a screwdriver is possible, but on fleam toothed saws only, where the teeth are shaped as equilateral or isosceles triangles.
- wood is not the best material for the production of vessels intended for long term storage of water. Barrels (and ships) were waterproofed with wax, bitumen, tar etc. The joints of staves of barrels were sealed with the insertion of flax or line tow. In the Orient vessels made for long term storage were and are lacquered with Oriental lacquer.
-wooden windows are very good insulators, the extruded plastic frames require additional PU filling to approach that. And wood is a renewable, environmentally friendly material, PVC and PU are produced from oil and gas for a strong contrast.
-Klausz was born and raised in Hungary. I am Hungarian. So I know that his education and training was not that mysteriously refined and/or extraordinary. He is a cabinetmaker and not a sage or magician.
Have a nice day!
János