| 摘要 |
PROBLEM TO BE SOLVED: To provide septic tank equipment and an installation method for it having a structure with excellent mechanical strength, water resistance, and durability. SOLUTION: A protection part 60 is arranged on a concrete base board 63 around the corner of a septic tank 10. The protection part 60 includes reinforcement 65, a concrete cylinder body 61, and concrete 30. The reinforcement 65 extends from the concrete base board 63, and the concrete cylinder body 61 arranged on the concrete base board 63 includes the reinforcement 65. The inside of the concrete cylinder body 61 is filled with the concrete 30. COPYRIGHT: (C)2003,JPO
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