Pond Boss Forums POND CONSTRUCTION Renovating a Pond or Lake? Raising water level

I have these outflow boxes on 2 of my ponds and in-line boxes on 2 of my wetlands. I keep the outflow boxes protected from UV and they have worked perfectly for many years. They are not cheap, but provide flexibility in adjusting water level. I also used hog panels to limit trash and keep out the muskrats.