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| WARNING Make sure that you follow the laws and local regulations related to excavations near underground facilities and utilities prior to drilling the hole for the device. |
- Depth 360 mm (14.2 in)
- Diameter 60 mm (2.4 in)
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Drill approximately 50–100 mm (2–4 in) at a time.
Use water when drilling asphalt or concrete. Do not use water when drilling gravel.
Remove the asphalt block from the drill bit.
Clean the drill bit in between to avoid gravel from sticking inside.
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Verify the correct depth with the dummy block. If the hole is too deep, add filler
sand.
If there is water in the hole, use a cloth to dry it.