Mira Platinum - Dual Rear Fed step-by-step installation

We take you through the step-by-step installation of the Mira Platinum dual rear fed digital shower.
The new Mira Platinum smart shower takes your experience to another state of personalisation, simplicity and style. Alive with Mira’s most sophisticated technology, it can be controlled by a wireless push-button display, your voice, or even remotely by your phone - so your perfect shower is always ready.
To find out more about Mira Platinum, visit us at:
www.mirashower...

[@Zoffmeister]

I have a Smartap shower which has failed...and am considering replacing with one of these. The Smartap is currently fitted using JG Speedfit pipework which I was hoping to reuse. Is the use of speedfit definitely not recommended?