Why do you want to use more jets if you can't get the water up the pole in the first place? The pump you use is useless, it hasn't got the balls to feed more than 2 jets with any volume of water worth considering.
Que
Erm currently using 4 jets with ease Matt, so i dont understand your view.
If its with reference to the water bar on a brush that I posted a while back, then yes I would agree but your forgetting one thing, thats with the backpack gardner trolley.
My sureflow 5lpm provides adequate flow and power for my needs.
But I'll feed the line to you, what pump are you now using? As you posted about wanting bigger n better (lol normally compensating for something, some may say
)