Recently finished excavating our new pond, now building the bulkhead and setting up to install the bottom to surface drain system. Our pond is roughly .90 of a surface acre in size. The water shed into the pond is roughly 2 acres.

Currently considering either a 6" or 8" piping size for the drain system

You guys with the been there experience...would a 6" system surfice or should we go with the 8"?