Some guys have sunk plastic and PVC in some lakes I fish with good success. I have caught good fish on them on several lakes . Figure using zip ties and ss steel wire to hold them together and fasten to concrete block they should last a real long time . I think they would not be as good on lakes that get drawn down for extended periods . Most plastics are harmed by sunlight . But if remain submerged they should do well . We heard they must moss over with algae . Been thinking about trying to add small bags of feed inside to kick start algae and minnows coming around .

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