What is the chemical used to prevent H2S gas formation from Ferric chloride?

What is the water from urinals called?

What is the temperature condition required for hydrogen sulphide formation?

How many traps are present based on the shape?

_________ is similar to P. trap.

What is the diameter of flush pipe?

What is the chemical used to prevent H2S gas formation from Magnesium hydroxide?

The entire system should be ventilation free.