In a house drainage system, the pipe through which human excreta flows is called __________

A water distribution system is a complex engineering system that delivers water to customers. It's a link between the water supply and the consumer.  Here are some basics of a water distribution system: Water pipelines: Install water pipelines to ensure proper water distribution and management. Pumps: Pumps move water through the system. Valves: Regulate water pressure and flow direction along the way. Reservoirs: Elevated storage tanks or standpipes with gravity distribution and in-ground tanks or reservoirs with pumped distribution provide the necessary quantity and pressure to meet... Show more

A water distribution system is a complex engineering system that delivers water to customers. It's a link between the water supply and the consumer. 

Here are some basics of a water distribution system:
Water pipelines: Install water pipelines to ensure proper water distribution and management.
Pumps: Pumps move water through the system.
Valves: Regulate water pressure and flow direction along the way.
Reservoirs: Elevated storage tanks or standpipes with gravity distribution and in-ground tanks or reservoirs with pumped distribution provide the necessary quantity and pressure to meet the demands placed on the system.
Backflow system: Keeps contaminants out with its filtering capabilities and valves.
Drains: An essential part of a plumbing system that ensures that water is removed from a home or building efficiently.
Plumbing fixtures and fittings: Essential components of plumbing systems installed in buildings for the adequate distribution of water. 

Here are some distribution methods for multistoried buildings:
Direct supply system from mains
Gravity distribution system
Pressurized distribution system (Hydro-pneumatic pumping system)
Combined distribution system 

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