Nope, tree stumps lock the blocks they are on, as chests do.is it not possible to just actuate the dirt with trees on top?
It actuates whole terrace when the all lava will pump out from the right tank. It uses transistor to activate yellow wire when lava sensor turn off. And I use 5s timer to not allow sensor turn off too soon. So no wood will burn out but in total it takes about 1 minute before you collect all items.So does it immediately actuate an entire tree terrace once the first drop of lava reached the end, so dropping the rest down below? You have to collect it together beneath? (Hope it doesn't dupe too much...)