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0 pointsPinckney8y ago0 comments

The entrance is V shaped, and is fitted with pumps at the bottom.

0 comments

Clever, but depending on the flooding, the pressurization inside the vault may not be enough to keep water out.

j / k navigate · click thread line to collapse

Clever, but depending on the flooding, the pressurization inside the vault may not be enough to keep water out.

j / k navigate · click thread line to collapse