So as you know, i use four pencil jets on my brush and for me this works well.
Before i added the additional jets, i simply connected the brush as it came and straight onto the pole hose with a straight push fit connection.
When i added the extra jets i connected my pole hose with a Y Push fit connection. Then jet hose with a plastic Y Fitting which went to 2 jets a piece. The picture may explain better;
I have used it this way without major problems, though it does look untidy. It also becomes slightly difficult when navigating juliet balconies. But i managed ok and need a flow speed of 70 -80 (pure freedom digi controller) to get an even flow through all four jets.
My spare brush n pole that i use with the backpack also uses 4 jets and i connect them easily with a 4 way push fit split connector
This is lovely and tidy and a good flow from all the jets using a gardiner latest backpack.
However i cannot source the same push fit for lager than 6mm jet hose. But then i came across a picture of someone eles four jet set up and i thought it was neat and tidy and so gave it a go;
This is my main brush. Using a T Equal split push fit fitting and then simply connect to 2 Y push fits. This has not only tidied my brush up and made it easier for juliet balconies but i have a equal split of flow through all four jets on a lower flow rate as well.
So by simply changing how i have connected the jets i have improved it greatly.
Thought this might be useful or if not, what have you guys found that works best for you? That others may benefit from learning about