Wall Mount Sacristy Sink. In the sacristy you will find the sacrarium, a special sink with a pipe that bypasses the sewer, unlike an ordinary sink, but instead goes straight into the earth. This sink is made to preserve the dignity of sacred things which can no longer be used. For example., the sacred vessels are rinsed there so that no particle of the consecrated Host or no drop of the Precious Blood will end up in the sewer. The first rinse used to clean Altar linens, old baptismal water, sacred oils, blessed ashes, etc; all these are disposed of in the sacrarium, returning those substances to the earth. Call us for specs.