Saturday, 21st.July After I packed up at the end of the last session and loaded up the barrow, I decided to investigate the area down by the Dam to my left. The Dam encompasses the southern end of the reservoir where the Draw-Off Tower is located and Google Earth images show the effects of the aeration system. This is manifested by surface disturbance some distance out from the Draw-Off Tower. Aeration at Bough Beech. The area of disturbed water can be clearly seen in this Google image. The red line represents an eighty-yard cast. Drinking-water supply reservoirs use something called Hypolimnetic Aeration and Oxygenation . The scientific basis for this is somewhat complex and beyond the scope of my ramblings - but as far as I’m concerned it’s an Aerator to get more oxygen into the water. This is good news for both fish and anglers as it provides a significant feature to go at. One possible strategy would be to try and fish as close to the aerated water as possible