Final answer:
Pompeii and Herculaneum received water through Roman aqueducts, which transported water from distant sources, employing reservoirs and water-resistant cement to maintain a clean supply. These aqueducts were part of a larger water management system that also included public hygiene facilities such as bath houses and latrines.
Step-by-step explanation:
Pompeii and Herculaneum received their water supply primarily through Roman aqueducts, which were part of the sophisticated water management systems engineered by the Romans. These aqueducts were designed to deliver water from distant sources, ensuring a reliable flow to the cities. Roman engineers made significant advancements, including the use of water-resistant cement to line their aqueducts and the construction of reservoirs near water sources to ensure a steady and clean water supply. The complex network of conduits also featured drainage and wastewater management. This system allowed for amenities such as public bath houses and even private homes of the wealthy being connected to the sewer system. Although not every resident had access to indoor plumbing, public latrines were available, demonstrating the importance of hygiene in Roman society.