What is the benefit of a 3/4" shower valve outlet over a 1/2" shower outlet (or vice versa). Both valves have 15mm inlets.
Hi MB None....unless you had a very high flow rate shower head and the supplies were pumped or mains fed
The system is pumped and the shower head delivers as much water when it is connected (24 litres per minute) as the pump does with the shower head disconnected (24 litres per minute). Would 1/2" or 3/4" make any diference under these circumstances ?
Well 3/4" will not be a disadvantage and it may just help...but it's not going to make hell of a difference one way or another