Pipes were used for supplying water in a Roman household, but were taxed according to their size. Because of this, many houses had just a basic supply of pipes and did not have a bath complex in their house. For this reason, bath houses were created. Bath houses were made to keep the Romans clean, but these bath complexes were also a gathering point and served as a social function. In a bath house, a visitor could use a cold bath called a frigidarium, a warm bath called a tepidarium, and a hot bath called a caldarium. A large complex would also contain an exercise area, a swimming pool, and a gymnasium as well.
The Romans built aqueducts and channels that transported large quantities of water to major towns and cities. The creation of aqueducts resolved all the problems of water catchment, transport, reliability of supply and distribution to all parts of the city or to a system of agricultural irrigation. For these reasons, the populations of Rome and other cities increased and the demand for fresh water grew, so the Romans began building aqueducts.
Nardo, Don. Roman Roads and Aqueducts. San Diego, CA: Lucent, 2001. Print.
“Roman Baths”. HistoryLearningSite.co.uk. 2014. Web.