We are considering fitting a Mira Combiflow shower to our WB 24i system. The Mira instructions don't make it clear whether a mini expansion vessel is necessary in my case ( no prv anywhere in system) in one section it says it must be fitted, in another it says its only needed if a prv is present. Has anyone fitted Combiflows with/ without shock arrestors, any advice welcome.
Do I need a shock arrestor/ mini expansion vessel?
- Thread starter Northern Scum
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