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Required information

Water at $20C$ flows upward at $4\frac{m}{s}$ in a $6$ km diameter pipe. The pipe length between points $1$ and $2$ is $5$ m $,$ and point $2$ is $3$ m higher. A mercury manometer, connected between $1$ and $2,$ has a reading $h=105mm$ with $p_1$ higher. The specific weight of mercury and water is $133,100\frac{N}{m^3}$ and $9790\frac{N}{m^3},$ respectively.

What is the friction factor of the flow?