Select a pump $($preliminary selection$)$ for $Q=100$ gallon $\frac{?}{\text{m}\text{i}\text{n}},$ pump head $9$ meter $(\frac{0\mathrm{.}9}{b}arg)$

For your selected the pump, what should be the system $($tank$/$pump$)$ layout? and Why $?$

Note: The characteristic curves of available pumps are: model $3656.$

Model $3656/3756$ S$-$Group

$1750RPM$

NOTE: Not recommended for oneration bevond