flazoom
New Member
I am going to purchase Grohe valves (1 thermostatic and 2 flow) for my master bath shower remodel. We were looking at 'aquabrass' as I posted in another question, but my wife saw the Grohe 'Allure' style and made her/our decision. I now need to decide on 1/2 inch versus 3/4 inch. I have 3/4 from the hot water heater to the bathroom, just up through the floor, which is then connected to 1/2 to the old shower valve and sinks. The 1/2 pipe to the shower is about 6 feet long and the connection to the 3/4 inch pipe is in the corner between 2 metal wall beams which makes it difficult to get to . (they use metal instead of wood 2x4s for the walls here in Florida. I plan to put in an 8x8 inch square showerhead mounted from the ceiling and a handheld mounted on a wall bar. I would like to be able to use them both at once on occasion. Is the 1/2 inch valve acceptable or should I go to the 3/4 inch? If I go for the 3/4,do I need to have the 6 foot of 1/2 replaced with 3/4? I tried searching previous threads but found differing opinions.