Next problem: the trickle from the #ramPump is not sufficient to start the #bellSiphon (which otherwise works well). I need some sort of non-linear system that would store water coming slowly, and release it all at once, without an equilibrium state.

I think this should be achievable with a #shishiOdoshi https://en.m.wikipedia.org/wiki/Shishi-odoshi. And sure enough, people with exactly the same problem as me already tried https://m.youtube.com/watch?v=NK6iBVMHCfU

I started building one this weekend, and it works reasonably well. I plan to use the support cross-pipe as an inlet, so I drilled some hole on the inner section. This remains to be tested.