What does the plumbing system in a residential setup include?

The plumbing system in a residential setup includes fresh water systems, hot water systems, and waste water systems. This comprehensive approach ensures that the home can supply potable water for drinking and cooking, distribute hot water for heating and sanitation, and effectively remove waste water from baths, sinks, and toilets.

Fresh water systems are essential for providing clean, safe water for everyday use. Hot water systems then take this functionality further by offering immediate access to heated water, which is vital for tasks such as washing dishes and bathing. Waste water systems play a critical role in sanitation by ensuring that used water is properly drained away from the home.

In contrast, options that refer only to fresh water or waste water systems fail to encompass the essential components of hot water distribution. Additionally, air conditioning systems are part of HVAC (heating, ventilation, and air conditioning) systems and do not relate to plumbing, further clarifying the unique roles of each system in a home.