I got this idea from a S.African site titled "waterbridge".
The main problem with this waterbridge is lifting,inverting and
placing.
I am a British refrigeration\airconditioning engineer hailing
from Christchurch, Dorset. (I left in disgust when the Tories
moved Christchurch into Dorset) it
was in Hampshire!
The pictures show me and this 6mm x 110cm x 20cm x 15cm square
glass tunnel linking 2 small (30cm x 30cm x 40cm) aquariums.
It is filled by "pulling " a
vacuum on a small non-return valve situated in the center top of the tunnel.
The testing using copper pipes to prove if 30 inches of vacuum
will really lift the water to a useful height and the subsequent
assembly and leak-testing (water
does not leak out when pulling the vacuum, air leaks in!)
This
is a prototype: A larger version could be built following these
guidelines.
I am currently refining the non-return-valve. The vacuum-pump
is not an expensive commercial unit but a discarded home refrigerator
compressor.
I
hope this is of interest to someone. Iam living in Eilat, Israel. I and
my family
scuba dive regularly on the reefs 10 minutes drive the house.
pulling the vacuum, air leaks in!) 
I
hope this is of interest to someone. Iam living in Eilat, Israel. I and
my family
scuba dive regularly on the reefs 10 minutes drive the house.
