I was in the middle of making a big supply line with a long pipe across many squares the liquid where going into the pipe but after a bit it all reverses back and dissaperes.
I built a square supply line for dye around my main area and tried to feed it.
The first two dye works fine but the 3rd one just doesnt.
Here is a copy of my save (i hope)
If there is anything feel free to contact me.