Pool Water Level

Just wanted everyone to know that the pool has a drain that keeps the water level stable.  The drain is located near the ladder at the far end of the pool.  If you are facing the ladder it is to the right.  Last week I went down to the pool and someone had left the hose in the pool and the water running all night.  This wastes water and money.  Please be aware of the pool drain and do not attempt to fill the pool above the drain.  The picture below shows the drain to the right of the ladder underneath the no diving sign.  Thanks in advance for your help.