Pretty fun game Yathzee! I managed to get to level 9, but couldn't make enough money in the time period. There is also this annoying bug where the liquefuir doesn't accept poo and it just fall through the machine. Another frustrating part is that your machine gets deleted when you fail. Meaning that you have to make it all over again. Though, it is nice that the machine can be changed during run time.
The liquidizer lets poo fall through only when it is turned off. Since we never get told that it's possible to turn something off, I thought I'd mention it here. You can click any machine to turn it on or off, signaled by the lever and light on it's main component.