The flow from my new 3/4 acre pond exits thru a 10 inch pvc standpipe. The standpipe is in approx 7 feet of water with an area of 12 foot depths close by. Average pond depth is around 8 feet. I would like to add a sleeve over the standpipe to release bottom water.

1. Will it be beneficial to release water from 6 to 7 foot depths when there are deeper areas in the pond?

2. What would be the easiest thing to use for a sleeve? I was thinking of the large black plastic pipe. Not sure what size to use.

3. How to attach the sleve to the existing standpipe? Hangers of some sort, with a cement block tied to the bottom for weight?
Any thoughts or experiences appreciated. Thanks, Coach B