Petsafe Classic In-Ground Fence Manual De Instrucciones página 19

Cross hard surfaces
Concrete driveway or sidewalk
Place the boundary wire in a convenient expansion joint or create a
groove using a circular saw and masonry blade. Place the boundary
wire in the groove and cover with an appropriate waterproofing
compound. For best results, brush away dirt or other debris and spray
out the groove with a garden hose before patching.
Gravel or dirt driveway
Place the boundary wire in a PVC pipe or water hose to protect the
boundary wire before burying.
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