My cable run from consumer unit to shower is 13 metres. I have 6 metres of 16 mm T & E going spare as well as 13 metres of 10 mm T & E. Is there anything against running the 16 mm cable to the loft and running the remaining 4 metres in 10 mm cable using the apprpriate spltter box. Or should I stick with 10mm and scrap the 16mm cable which would be a shame. Shower is Mira 9.8Kw.
regards
Bill