our old hand held showerhead had cracked and was leaking, so I installed a new one with the same flow rate, but when we turn the water on now the flow is greatly reduced, and the flow out of the faucet into the tub is reduced as well. I didn't think the showerhead could effect the flow rate into the tub faucet but appears as though it has. The installation instructions say that if the hose is backwards the flow rate could be obstructed - according to the labels they had on the hose it is installed correctly, but I haven't tried switching it around yet - anything else that could be causing this problem?