Is it feasible to pour with the actual weedguard in place. I haven’t tried it. Probably melt the fibers?
I fish a highland reservoir where they cleared the trees before filling it. It is devoid of vegetation unless it floods and the water is very clear. . Instead of installing a weedguard in that (mostly) hang-up free water, why not fill that hole with a paste type attractant?
Or tie in a rabbit strip soaked in attractant?