ORIGINAL: diamondave
i just read that in the manual i downloaded for the pump, it says to set the subtrim to -100, that will give the negative value, i am going to try it right now...with the pmix, i guess you combine the 1st set of numbers and the atv to get it to come on when you want and how much you want? then just go up proportional from there?
What I did with mine is set the 1st point to -100 and all the rest at +100..then I set the atv's as low as possible..then I went back to the pmix and started lowering the values as low as possible ..I tried to get a nice med-flow stream at the lowest possible ATV setting..If I remember. my 2nd point is somewhere around 40 and my highest is 65