I do, but its still not good enough sometimes, especially if height changes are involved. In my most recent factory i had a surplus of 5pm in a pipe and the fluid still slowly went missing. It's too buggy. The point is, I shouldnt have to. If I put 600pm into a pipe, 600pm should come out.

You can work around things as much as you want to "finish" the game. If you want to actually sandbox and build a factory, you end up fighting the game more than actually building.