UNOFFICAL CONTEST:liquid transporting

build something to transport liquid.
transport fluid from the left to the right.
you may need to place a wooden object in the fluid to track and hide it by lua
rules:
1.Don't change any game rules.
2.Anything is allowed,even lua.
3.You can't use old levels.
4.must be automatic.
5.do not build in the no-build-zone.
6.you can't build to the layer 3.