I plan to fit a shower thermostatic mixer with offset connector but wondering if I will loose pressure when reduced from 1/2in to 15mm. There would be another option which I only found much later as there is no reduction, http://www.screwfix.com/p/h-and-c-c...xing-kit-chrome-effect/76919?_requestid=35398
Go for the easy fix kits every time, getting the offsets level and flush and watertight all at once can be a nightmare if the wall behind is poor.