Bobbss…FWT Bright Dyes was the dye I used to first locate the leak with sinking the balloons and popping them on the bottom. https://utility-technologies.myshop...IvPV9_5u5wOZYaWBtgoUA5Ly57qie3CdWB_ifR18

You’re right, if the leak is a lot of little seeps, it may be hard to tell. But, if you can even eliminate one half of the pond by following the dye to a general area, it greatly reduces the cost of polymer treatment. Depending on how deep your pond is. Even applying due to the surface on a windless day, you might be able to track it. If your pond is less than 10’ deep, I would try the surface application of the dye first. It’s cheap, and it might be all you need to identify the general area the water is moving toward.

Our pond is clear, which is certainly an advantage. I can see at least 4-5’ down. Maybe more. I haven’t done a secchi disk.

There are cheaper camera options for sure. But I totally understand.