I am working as a Packing line executive. And we are packing shade colors(Red and Yellow). As we are packing both colors in a single line. We are using mass flow meter based filing machines(The machines without hopper, the paint from the pigging line will directly comes out from the nozzle and fill in containers)

Thus we are facing pressure fluctuations a lot....

And while pigging, there are so many over fillings and splashes

Can anyone please tell me some controlling methods to these problems?