Loss detection system for open channel networks

A system comprising:

• a first regulator to allow flow of liquid into a pool from an open channel, the open channel comprising channel banks and a bed;
• a second regulator to allow flow of liquid out of the pool of liquid;
• first and second flow sensors co-operating with the flow regulators;
• and
• computational means communicating with the flow regulators and the flow sensors to control operation of the flow regulators and to determine theft loss by calculating a measured flow into the pool through the first flow regulator and subtracting a measured flow out of the pool through the second regulator.

The system of claim 15, wherein the evaporation losses can be determined by the formula:

• Evp=0.01×Pf×Epp×SA,
• where:
• Evp=the volume (Megalitres) lost to evaporation from the pool water surface for a period ‘p’;
• Pf=pan factor (Class A);
• Epp=pan evaporation for period ‘p’ millimeters);
• and
• SA=surface area of the pool.

A method comprising:

• monitoring a flow of liquid leaving a pool, wherein the pool receives the liquid through an open channel, the open channel comprising channel banks and a bed;
• controlling the flow of liquid such that a level of liquid within the pool is constant;
• and
• determining theft loss of liquid based on the monitored flow of liquid.