20. SACRARIUM
In addition to the sacrarium joined to the baptistery, a second sacrarium for other uses will be built in every cathedral, provostal, archipresbyteral, parochial church, or of any other kind in which mass is sometimes celebrated. It will be built in one or the other of the forms prescribed below.
It will be located in the main chapel, if it is convenient and does not present any obstacle, or in another point in the church closer to the sacristy, which is more suitable for the purpose, as long as it is out of sight of the people. Or it can be built in the sacristy itself, if it is large, and above all if the church is much used and has a large clergy.
First form of the sacrarium
The first form of the sacrarium is that of a marble or solid stone basin, concave, like a baptismal font. It will be one cubit long and sixteen ounces wide, and will be round or oval, or square, or some other form, whatever occupies least space. At the center of the concavity at the bottom it will have a square hole, about five ounces per side.
It will be supported on a square pier or other shape, depending on that of the basin, with a small base, so that it will measure two cubits from the floor of the church to the top of its rim.
There will be a small drain in correspondence to the hole and this will pass through the center of the pier. It will also be square and five ounces wide. Water, ashes, or other things, will be thrown in and flushed out. A cistern will be dug out below this drain, where everything that has been poured or thrown out will be collected.
This sacrarium will have a walnut cover, sloping upwards, almost like a pyramid. It will be hermetically closed with a bolt, lock and key.
Second form of sacrarium
This will be the second form of the sacrarium. A small concave opening will be made in the wall, twenty ounces or a cubit deep, depending on the thickness of the wall, a cubit wide or somewhat more and one and a half cubits high, and it will be about two cubits from the floor of the church.
The bottom of the opening will be a hollowed out solid stone, with a hole, as above, square in form, and a conduit with a small cistern beneath it.
The sacrarium will be closed by small doors with a lock and key.