Naboo. Tnx for commenting.

About the seals. Less friction would be good.
Maybe a pressure seal is even better.. only closed when on pressure, fully open on the way up.

I tried some some weight on the cylinder, to see at how much weight the the water is forced up high enough. So far no good.. A few kilo's did not do it. I have to built a more stable setup.

I'm afraid it will need a some dead ballast, problem is that dead ballest has to go back up also..

I share youre idears, still think you might get some usable hydraulic power out of using the water as a liquid weight


Tnx for youre comments.