Brine from the bottom of a large open tank $($reservoir$)$ to a pressurised storage tank from the bottom, $0\mathrm{.}006$ m$3/$s pumped through a $20$ m long $4$ in Schedule $40($D$=4\mathrm{.}029$ in$)$ pipe. In the storage tank the pressure is $2\mathrm{.}36$ atm absolute$.$ The pipeline contains $390$o elbows and $2$ wide open gate valves. The power of the pump is $1\mathrm{.}12$ kW and the efficiency of the pump is $0\mathrm{.}85.$ The system operates under the specified conditions. Calculate the difference between the liquid level in the feed tank and the liquid level in the open tank. $(\backslash$rho brine$=73\mathrm{.}59$ lb$/$ft$3,$brine$=1\mathrm{.}2$cP$)$