Pond Boss Forums GENERAL QUESTIONS Property Projects & Construction Help vert & horz drain pipe same

Hello I’m new to the pond game. My 12” drain stack approx 15-20ft is the same size as my horizontal drain approx 80’ long. It’s a very small creek feed pond. My issues is the erosion from my emergency overflow 6’ gal pipe. Everything goes out that & im currently trying to repair. Any easy fixes since I can’t get to the 90 to make the outlet smaller. I’m only coming up with fishing a 6” pipe down it then attaching a 8” stack. Any tips will be appreciated

Welcome to the forum! Nope, no easy fixes. Talk to the local county NRCS and see what size drain pipe is required for your pond with your watershed that feeds it. No sense putting in something too small that will cause problems down the road, and money needlessly spent.

I do not understand your situation.

Here's what I get: You have a 12" drain stack with a 12" horizontal pipe presumably at the bottom of the stack leading to below the dam. There is an erosion problem with the 6' (length ???) (6" diameter ???) emergency overflow pipe.

What I don't understand is why "everything goes out" the emergency pipe. Normal outflow should, I think, be from your 12" drain, and only an outstanding rain event should cause the emergency pipe to be in use.

What am I not getting correctly?