I use a push fit connector as recommended by the lads above and when I disconnect i bend the pole hose and push it into a 6inch bit of plastic pipe. Works a treat 
I use the wfp link, so at the press of a button the pump stops
they must have improved lately, as when I used one it took about 5 seconds for the flow to nearly stop and water would still dribble out the brush
Alank - I think you need to start up 12 threads showing how superior your invention is to everything else on the market, don't forget the video and wear a large hat with corks dangling down
Darran
Had that problem when there is too much pressure in the system. I found after a few days of messing around with calibration, plus the system just ‘sorting itself out’ it now stops almost immediately.
I reckon if you use microbore it’d be more of an issue with higher pressure in the hose.
The new link is good bit of kit, you can change flow, calibration and turn the pump on and off all from the fob. You can also turn the controller completely off as well. It’s pretty handy as means you can shove the controller anywhere in the van, rather than it being near the doors.
I also like that the pump never needs to engage the pressure switch, giving it longer life. The link just turns the pump off and on.
The app is a great feature as well, you can adjust all the pump settings from a 100m away on a job, rather than walking back to the van to mess around with the controller.
It’s all a bit gimicky, but to be fair I’ve defo enjoyed using it.