ClipArt ETC
A piscina or sacrarium is a shallow basin placed near the altar of a church, used for washing the communion vessels. They are often made of stone and fitted with a drain, and are in some cases used to dispose of materials used in the sacraments. They are found in Roman Catholic, Anglican, and Lutheran churches, and a similar vessel is used in Eastern Orthodox churches.

Decorated Arch and Piscina

A piscina or sacrarium is a shallow basin placed near the altar of a church, used for washing the communion…