Regarding buried vs not, pvc pipe, unless specially lined, will degrade in the sun. It needs to be protected from UV rays. Paint works, but doesn’t last long.
Brad
1.5 acre pond with LMB, BG, BCP, CC, FHM and lots of crayfish, unknown type. .5 acre pond with FHM and GSF. 12 acre irrigation reservoir that I don't know what to do with. New pond, roughly 1.5 acres. Pond Boss Subscriber.
| 
