The standard size is 8×8 inches, which works well with standard pressure. For a luxury spa feel, go for 12×12 inches, but ensure you have a pressure pump installed.
Yes. A ceiling-mounted arm requires the plumbing pipes to be concealed above the ceiling tiles. If you don’t have a false ceiling, you must use a Wall Arm.
Thanks to Rubit Technology, simply run the shower and wipe your hand across the silicon nozzles. The water pressure, combined with the friction, will pop the limescale out immediately.
Likely not well. A large shower (12″+) splits the water volume across many nozzles. Without a pressure pump, the flow will feel like a weak drizzle.
Ensure the arm is long enough (usually 12 to 15 inches) so that the showerhead clears any wall shelves or taps and the water falls centrally in the showering area.