I got 4X4 dosing pump in a chain all conected to s1-4 and set to digital on the pro 3ex,
for the life of me I don't get it, all the pumps work together (e.g if set to start with number 1 there is 4 ones, 4 two ans so on rather than 1-16) what am I doing wrong ( I kined of fill stuped - please and thanks in advenced...