Quote Originally Posted by lhumphre View Post
I think once they start to get algae growth on them, they are way more defined like brush...
Yep, U will see them easier with algae on them, although my HB 997 would pick up PVC 5 minutes after it dropped without havin to adjust sensitivity. If U gonna drop more stick a tin can(like from tomatoes or pork beans) over one of pvc poles and secure with a couple of screws, on condo #1 place can near top, condo #2 place can 1/2 way down ,condo #3 can near bottom that way U always know what condo U on. That tin can will really stand out...........