First, the wall
1. Check the wall for cracks.
2. Check if there is an empty drum on the wall. Use a small wooden hammer or other thing to knock on the wall. When you hit the empty d…
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1
First, the wall
1. Check the wall for cracks.
2. Check if there is an empty drum on the wall. Use a small wooden hammer or other thing to knock on the wall. When you hit the empty d…