I’ve seen others off and on working on their R.R. that have water features that is an added up keep. Ponds are a messy item that I hate to get into. Every few years we have to drain our 38 foot pond and fix leaks and paint the bridges going over it. Also, gives us a chance to do Maintenance on the Swing Bridge that needs minor alignments and on the piers. The pond is around 3 foot deep and takes a few days to move the Koi’s to a temporary pond. Move all of the small bull frogs to the back reservoir for now.
"Sorry can’t get photo off of flicker or hard dr.
Do this fig.out stuff later some day."
Here is a link to show something.
https://www.flickr.com/photos/72311803@N07/albums/72157698057292765