Pressure and flow measurement in BHU water supply system in Varanasi, Uttar Pradesh

I am a student in final year Civil Engg. at IT-BHU, Varanasi. I am analysing BHU water-supply system. I need help in the following two cases:

1. I want to measure the pressure in taps in hostels.In hostels, we have two types of incoming supply lines: one goes directly to taps, the other goes to tanks on roof. I am interested in knowing how much pressure is there in directly supply line in the hostels. I want to know how this could be done with and without pressure-meters (without pressure-meter is preferred).
2. In one of the pumping stations in BHU, underground water is pumped by using submersible multi-stage pump. Water is directly supplied to OHT(about 25m. height) and then water goes to main supply line. I want to measure the discharge of pump. It does not seem possible to install any flowmeter in the pipeline between pump and OHT. Any other alternate ideas?

Any suggestion or question is most welcome.

Thank You