Hi, ive recently been having problems with my 2 pumps, wondered if any of you could help me out! Im using two Veristream programmers, one to each of my pumps, and on using my triggered pole at the first instant with trigger fully pressed down, water comes out fine for the first two seconds, then the flow drops right down to a stop before returning back to the right flow again. A few things ive noticed when this happens is; the pump starts as normal, then shuts off and flashes 'P', my flow drops, it then restarts and my flow will be fine.. Until i take my hand off the trigger, in which it starts all over again.. Ive been told by Veristream to calibrate the programmer by pressing the up and down buttons together and choosing the highest letter, in my case 'F' with all the poles connected and see what happens. Well it just makes the time between the flow stopping and starting again shorter, but not overcoming the problem. Ive never had this problem before and it has just started happening this month, has anyone else had this problem and could help me out? Thanks!