Thanks guys. Yes, getting in was rough, I bashed my knee pretty good and another one of us got cut on the barb wire, but it wasn't too bad. I also didn't do anything too crazy to get in, the POE is just difficult to find.
Posted by Turd Furgusen So what are all the balls??
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The balls are commonly used in water plants today for waste water treatment. They act as a filter, allowing micro organisms to break off and grow on them. It's called a trickling filter, I think.