3.7 Water Meter
water meter is a very commonly used device due to it simplicity, reliability and indicated as water through the will wheel to and with gear of can be as l or lower. Flow rate is obtained by timing the flow volume with a stop watch.
3.8 Measuring Tank Measuring Tank is considered to be the most reliable means of measuring flow rate by using a stop watch. The dimensions must be made very accurate and the tank should be calibrated against a standard device such as a graduated cylinder.
3.9 Priority of Measuring Device most reliable choice should be: When several devices are available for using in determining the flow rate, the
1. Measuring tank
2, Water meter
3. Flow meter