We have extremely low water pressure at the street: about 14 psi as measured by the water company guy. They are not obligated to do anything about it as long as we get water, and by the time it gets to my second story bathrooms, the pressure is pretty pathetic in the showers. The sinks and tubs are useable, but taking a shower is pretty miserable. Can anyone recommend the best shower head for extracting the most pressure out of a bad situation?