Corpus sync: neutrality remakes, note hygiene, datasheet relocation, transformer-split cross-refs
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title: Sanitary Drainage Specialties
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# Quality Assurance {toc}
−## Each drainage specialty shall be the product of a single manufacturer for each device type, so that grates, extension necks, and accessories are interchangeable and the warranty is undivided. {note}
+## Each drainage specialty shall be the product of a single manufacturer for each device type, so that grates, extension necks, and accessories are interchangeable and the warranty is undivided.
## Floor and area drains shall be listed to ASME A112.6.3 / CSA B79.3.
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## Body Material and Construction {toc}
−### Floor drain bodies are most commonly cast iron for general commercial service, stainless steel where sanitation or corrosion resistance governs, and PVC or ABS only in residential and light-commercial work. Cast iron is the 80% default because of its durability, weight, and broad availability. {note}
+### Floor drain bodies are most commonly cast iron for general commercial service, stainless steel where sanitation or corrosion resistance governs, and PVC or ABS only in residential and light-commercial work. Cast iron is the usual choice because of its durability, weight, and broad availability. {note}
### Floor drain bodies shall be cast iron conforming to ASTM A74 or ASTM A888 unless another material is scheduled for the service condition.
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−### The drain outlet size shall be sized for the drainage fixture-unit load but shall not be smaller than 2 in. (50 mm). {note}
+### The drain outlet size shall be sized for the drainage fixture-unit load but shall not be smaller than 2 in. (50 mm).
```datasheet
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## Trap and Seal {toc}
−### Every floor drain shall be trapped, either with an integral P-trap cast into the drain body or with a separate P-trap installed immediately below the drain. {note}
+### Every floor drain shall be trapped, either with an integral P-trap cast into the drain body or with a separate P-trap installed immediately below the drain.
### Each floor drain shall be provided with a trap, integral or separate, maintaining a liquid seal of not less than 2 in. (50 mm).
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−### Grates shall be rated for the load class of the traffic passing over them. A pedestrian or light-duty grate installed in a vehicular area will fail under wheel load; vehicular areas require a heavy-duty (H-20) grate. {note}
+### Grates shall be rated for the load class of the traffic passing over them. A pedestrian or light-duty grate installed in a vehicular area will fail under wheel load; vehicular areas require a heavy-duty (H-20) grate.
### Grates in vehicular and forklift areas shall be heavy-duty load class rated for the design wheel load.
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## Carriers in finished, occupied walls shall be the concealed type.
−### The carrier rough-in height shall match the connected fixture's actual rough-in dimension. A carrier set to a different rough-in height than the fixture it supports requires a special offset and is a common field error; the fixture rough-in shall be confirmed before the carrier is ordered. {note}
+### The carrier rough-in height shall match the connected fixture's actual rough-in dimension. A carrier set to a different rough-in height than the fixture it supports requires a special offset and is a common field error; the fixture rough-in shall be confirmed before the carrier is ordered.
### The carrier outlet centerline height above finished floor shall match the connected fixture rough-in dimension, confirmed against the fixture manufacturer's data before ordering.
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# Testing {toc}
−## Installed drainage specialties shall be tested with the drainage system before concealment, so that a leak at a drain, cleanout, or carrier connection is found and corrected before finishes are placed. {note}
+## Installed drainage specialties shall be tested with the drainage system before concealment, so that a leak at a drain, cleanout, or carrier connection is found and corrected before finishes are placed.
## The drainage system, including the specialties furnished under this standard, shall be hydrostatically tested by filling to the flood-level rim of the highest connected outlet and holding for not less than 15 minutes with no leakage.
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# Installation {toc}
−## Drainage specialties shall be installed so the connected piping pitch, the finished-floor flush condition, and the code-required access are all achieved together; setting a drain or cleanout to satisfy one of these at the expense of another is not acceptable. {note}
+## Drainage specialties shall be installed so the connected piping pitch, the finished-floor flush condition, and the code-required access are all achieved together; setting a drain or cleanout to satisfy one of these at the expense of another is not acceptable.
## Floor drains shall be set so the grate finishes flush with the finished floor and the surrounding floor slopes to the drain.
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- Spare trap-seal insert devices
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