Which one of the following statements regarding septic tanks is wrong? Options: A . &nbspA gap of 7.5 cm between the bottom of the covering slab and the top level of scum is provided B . &nbspThe outlet invert level is kept 5 to 7.5 cm below the inlet invert level C . &nbspThe minimum width of septic level is 90 cm D . &nbspThe depth of tank is kept equal to its width

Which one of the following statements regarding septic tanks is wrong?

Question

Which one of the following statements regarding septic tanks is wrong?

Options:

A . A gap of 7.5 cm between the bottom of the covering slab and the top level of scum is provided

B . The outlet invert level is kept 5 to 7.5 cm below the inlet invert level

C . The minimum width of septic level is 90 cm

D . The depth of tank is kept equal to its width

Answer: Option D

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