Hi!

Thanks for the good feedbacks.

Yes the water runs parallel through the blocks. There is one piece missing (the plate with the jet) for the other part.

The machining marks...
They are seen because of the light.
Anyway that is how the production is, I don't see any advantage if that surface would be polished. If we would cast the block there would not be any of those marks...
For me they are the sign of milling process. You will not see them because they will be facing each other when assembled.

For the Acrylic version, there will be 2 holes for the LED diodes. where d you suggest the places for LED's?