Consider the below statements with respect to Sewer appurtenances used in the sewerage system and identify the correct answer.
Statement A: Lamphole may be located when there is a change in the direction or gradient of the sewer in between two closely spaced manholes.
Statement B: Flushing tanks shall be constructed when there is a steeper downward gradient along the alignment of the sewer line.
1
Both statements are incorrect.
2
Statement A is correct and B is incorrect.
3
Statement B is correct and A is incorrect.
4
Both statements are correct.