As part of our bathroom remodeling, we had our plumber install a Grohe Grotherm 3000 integrated valve part # 34 126. The integrated valve runs to a wall mounted showerhead and a second ceiling mounted showerhead is fed through a separate valve. We have to concerns:
1. We cannot get cold water out of the showerheads. I know the thermostat is adjustable, but our plumber insists that nothing colder than warm water will come out of the thermostatic valve. Is this true?
2. Although the water pressure from the ceiling mounted showerhead is great, the pressure from the wall mounted head is very weak. I know there is and economy adjustment setting in the volume control which our plumber insists is properly adjusted. But I have my doubts.
Any advice is greatly appreciated.
1. We cannot get cold water out of the showerheads. I know the thermostat is adjustable, but our plumber insists that nothing colder than warm water will come out of the thermostatic valve. Is this true?
2. Although the water pressure from the ceiling mounted showerhead is great, the pressure from the wall mounted head is very weak. I know there is and economy adjustment setting in the volume control which our plumber insists is properly adjusted. But I have my doubts.
Any advice is greatly appreciated.