What could I attach to each plastic pipe structure to make it show up on a fish finder clearer. Some fishermen have old Fish Finders and they say it’s hard to find these structures. I have heard of people using aluminum pie tins
I think if you filled 1-2 pieces of your largest size of plastic pipe with sand and then capped the ends, those pieces might provide a good, long-term reflector.
You can certainly experiment with pie plates, etc. the next time you have out a boat with a fish finder.
