Plan of Septic Tank – We have taken the scale – ¼ inch = 1 foot. The length of the septic tank is 10 feet and 3 inches. The breadth of the septic tank is 6 feet. The boundary walls or outer walls are 9 inches. The internal walls which are constructed in the septic tank are equal to 4.5 inches (half of the external walls). We have three sections. Length of each section is 2 feet 9 inches; the second one is also 2 feet 9 inches and the last one is also 2 feet 9 inches.

The internal length of the septic tank without a boundary wall is 4 feet 6 inches. The cross-section or section at X – X view for the septic tank will show you the same two 9 inches walls, the internal walls with a thickness equal to 4.5 inches. The cross-sectional view will show you the PCC which is 1:2:4. This is the M15 grade of concrete. There are 9 inches of external walls. 0.5 is the thickness of the plaster, chips, walls and floor. The cross-sectional view will show the RCC walls and concrete.

From the water closet, all the materials can come in and go from out pipe. Once it becomes full some materials can flow from the outer side. The thickness of the top slab is 5 inches. There is a cover. It can be opened from its cover. If there is any issue, it can be opened from cover. There are holes between the internal walls. The height of the septic tank is internal i.e. without the PCC and the top slab. The height is 5 foot and 6 inches. This is most simple to study the septic tank drawing.

To get more detailed, watch the following video tutorial.

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