ok, the answer is to get the water until it is one level beyond the marker, then click on the tea until it reaches the marker, that should do it.
I do that and the tea overshoots the marker. this is the last stumbling block. I have finished all the other quests. so close !
you do three tea and then three water
thank you, thank you, thank you!
oops sorry. i had it backwards 💀
