I have a Ultra-Group 'Amber' Thermostatic Shower. The unit has 22mm inlets and the package provides offset 15mm to 22mm adapters. I will be burying the pipe in an exterior wall so should I use 22m feed or
15mm?
Thanks. Arthur
Thermostatic Shower - Installing
Apr 25, 2004
2 Replies
15mm?
In theory you should run 22mm to the unit and switch to 15mm at the last minute if required.
In practice, I plumbed our power shower in 15mm by mistake and it works just fine.
15mm all the way to mine. It's fine. If you are running off a combi, you're more limited to the boilers flow rate.
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