_________ is similar to P. trap.

Which year was the SWMM approved?

What is the quantity of powder required in 1000 litres of water for sterilization?

_______ is used below sinks to prevent entry of foul gases.

What are the masonry chambers constructed at suitable intervals along sewer lines called?

_______ is used to clean blockage in the line.

What is the limit of H2S exposure for 30 minutes?

Which of these is a positive effect owing to the drier soil conditions?