[Carry_Okie]

Postapocalyptic looters will be glad to know that the location of these bunkers are a matter of public record.

All it takes to kill the inhabitants is a garbage bag over the air intake.

[GraceG]

Auxillary Burried Areation pipe with a seprate water drain, sits right below the ground and allows the ground to filter the air.

Most people don’t realize that the ground is actually a bit porus.