(Solved): When the valve is closed the pressure throughout the horizontal pipe shown in the figure below is ...

When the valve is closed the pressure throughout the horizontal pipe shown in the figure below is 500 \( \mathrm{kPa} \), and the water level in the closed surge chamber is \( h=0.5 \mathrm{~m} \). If the valve is fully opened \( \left(\mathrm{K}_{\mathrm{L}}=2.3\right) \) and the pressure at point (1) remains \( 500 \mathrm{kPa} \). Determine the new level of the water in the surge chamber. Assume the friction factors \( \mathrm{f}=0.027 \) and the loss coefficient of the tee is \( \mathrm{K}_{\mathrm{L}}=0.87 \), the air temperature in the surge chamber remains constant with a density \( 1 \mathrm{~kg} / \mathrm{m}^{3} \). \[ \rho_{\text {water }}=1000 \mathrm{~kg} / \mathrm{m}^{3} \]