I don't know what the problem is?
Dispensing problems:
1. Clean the head nozzle thoroughly;
2. manic hand-gesticulations on dispenser in rapid up-down movements;
3. sauce should dispense freely (within 60secs - culminating in short bursts lasting all but 4secs until the head appears unworkable again)
**Followed by flatulence and/or a cigarette.
Mark.
P.S. Next week - self-levelling concrete ;-)