I'm currently having trouble priming one of mine. I purchased 2 (1000ex), and have one of them up and running no problem, however I can't understand why the other one won't work. The blue button that you press seems really stiff, and after you've pressed it, instead of springing back to its previous position straight away, it takes forever to go back to normal. It doesnt seem to be able to get the water running down the pipe (no kinks, just a straight line) and the two "In" and "Out" pipes are in the correct attachments. I've also filled it 3/4 like the instructions say.
I just cant understand why it wont work.
Any Ideas?