the skimmer was sumerged in cement and covered with rock, my dad had to build up the cement little by little, the first time he tried the thing wouldnt sink and would rise out of the cement.
Notice how the return lines are concealed in the rockwork, there are 4 across the whole pond
this is the platform that the pumps will go on, cement.
this is how the pond will be refileld after a water change or drained comletely, its actually on a low setting so i can show where its at, you would never know it was there unless its turned on