hi guys.  I'm sorting a water tank,  100psi shurflow pump along with a viper flow controller and remote control,  and have bought myself a hose reel with 100m of 8mm mini bore hose.   Pretty sure my pole hose is maybe 6mm microbore? 
My main questions are do I need to replace the hose bore to an 8mm to match the reel  or would the difference in pressures be ok? 
I don't use any ro system or anything by the way,  I fill up from spotless water station...
Thx