What size pump (horsepower) is required to pump an organic product ( $\mathrm{SG}=0.85$ and $\mu=60 \mathrm{cP}$ ) from tank A to tank B at a rate of $2000 \mathrm{gpm}$ through a $10 \mathrm{in}$. Sch. 40 pipeline, $500 \mathrm{ft}$ long, containing $2090^{\circ}$ flanged elbows, 1 open globe valve, and 2 open gate valves? The liquid level in tank A is $20 \mathrm{ft}$ below that in tank B, and both are open to the atmosphere.