Intrest on low pressure i have a 2 story house 3 bath rms, kitchen, washer & dryer, 3 floors, with kitchen on middle, bath on each floor, and 3 outside hose bibbs. the house is built in the late 20s early 30s replaces water line from meter to house all water lines are new 3/4 copper in the lowest floor branching to 1/2 as it goes to the upper floors. on the city side of the water the line is old galv. which is closed up. the water is best in lowest floor then decreased as you go up floors. i added a pump which works for the lower floors but not for the upper. my question is there any other way i can increase pressure or should the pump be mover to the upper floor??thank you, dave