Pour the slab of reinforced concrete around the mouth of the tank to the tank lid holder ring embedded with a slab of reinforced concrete to เสิ of strength while. Close the tank lid-open (in ณ๊ที่ไม่ steel or ABS lid use, don't need to pour concrete around the mouth of the cylinder). This will require continued ventilation pipes for ventilation that occurs inside the tank, reflecting the Sun and not kling back inside the building.
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