Water at $18C$ flows through a $25$ m long, $75$ mm diameter commercial steel pipe that contains the following fittings; one open angle valve, one short radius elbow, and one $90$ pipe bend $(kb=0\mathrm{.}12)$ with a radius of curvature of $600$ mm $.$ The length of the $90$ bend is not included in the $25$ m $.$ There are no entrance or exit losses. What is the total head loss if the flow is $2\frac{m}{s}?$