Rain/drench shower pressure

[BennyB]

I’ve been asked to install a rain/drench shower head.
I know these can be issue with low pressure.
Mains at garden tap is 1.5bar, combi boiler in loft about 5m up, then shower on second floor so below the combi.
I’m thinking this is 1 bar at the outlet and should be a good pressure for a 250mm diameter shower head, anyone think otherwise? Thanks

 

[Ben-gee]

Static pressure is not the be all and end all. What should concern you is the dynamic pressure and more importantly the flow rate.