This is a post without images.
The previous system with the white pots failed. First of all the flow through the tube of the air lifter was bad. I believe that the reason for this was something in the tube. Once algae started growing in them you know the slippery surface on the walls of water containers), the surface tension increased and water began to pour. So my tip is:
if you are going to use tubing that doesn't work at first, give it a while and see if it improves.
I am thinking of trying to start up the pots againg, but I am currrently more into bubble aeroponics and ebb/flow systems. Posts on two new tries will show up eventually.