Hi Friends, I have the following problem, install a GROHE brand START 23554001 faucet. I didn't have an installation manual and didn't seem very pleased. So I reached in. The first complication is that the faucet came with a 3/8 flexible nut and of course I had a 1/2 "outlet. place a reduction and solve the connection. The adjustment to the pothole and I am more or less well amurated. To give water opened the cold water and came out with very little pressure. I already worry about this. But when you open the hot one as if no more water came out, you feel a small thread I went back to the cold and just increased the flow. Could you help me or guide me to see what may have happened. THANKS