Spitjack is a nice unit, but if you have a clear (no particulate) injection, see Todds recommendation in this thread http://www.bbq-brethren.com/forum/sh...njector&page=2
I have both, and use the spitjack if the one in the link gets clogged. This link goes direct to ValleyVet http://www.valleyvet.com/ct_detail.h...8-edd8320ec6fe
you can just put the tube in the injection, squeeze once or twice to prime it, and then pump all you need without refilling. EZPZ!!