American Standard Wall-Hung Clinic Service Sink - AMS-9512999

Waste outlet piping on the 9512999 clinic sink is 4 inch (102 mm) preferred, with 3 inch (76 mm) acceptable. If you are roughing in new, run the 4 inch. The 3 inch is there for retrofits into an existing stack where opening the floor for a 4 inch is not practical.

It hangs off the wall. The 9512999 is a wall-hung fixture, so all the load goes into a carrier and blocking behind the finished wall, and nothing supports it from the floor. That is the reason it gets specified in soiled utility and clinic rooms: the floor under it stays clear for mopping. Plan the carrier and in-wall backing before the wall is closed, because a vitreous china clinic sink loaded with a mop bucket of water is not something you retrofit support for afterward.

No. A clinic service sink like the 9512999 is a wall-hung vitreous china fixture with a blow-out flushing rim, meaning it flushes like a water closet and is built to dispose of bedpan and bodily-waste contents in a patient care or soiled utility room. A mop sink or floor-mounted service basin sits on the floor, takes a mop bucket, and has no flushing rim or flush valve at all. If the job is janitorial closet mopping, this is the wrong fixture; if the job is a clinic soiled utility room, the flushing rim is exactly the point.

It depends on two connections. The waste has to be 4 inch, or 3 inch at minimum, and the flush supply has to land on a 1-1/2 inch top spud. If the fixture coming out already has a 3 or 4 inch waste and a 1-1/2 inch top-spud flush valve, the rough-in lines up and you are mainly dealing with the wall carrier. If the old fixture was floor-mounted, or the waste is smaller than 3 inch, that is a rough-in change, not a swap.

Vitreous china. It is a glazed, non-porous ceramic surface, which is why it is the standard body material for clinic fixtures that get wiped down with hospital disinfectants day after day. It does not stain or absorb the way a coated or composite basin can. The tradeoff is china chips if you strike it with a metal bucket or a cart, which is what the optional rim guards are for.

Rim guards are an option on the clinic sink, not part of the fixture, so they are a separate line on the order. In a high-traffic soiled utility room where carts and buckets come into contact with the rim, they are worth adding, since the guard takes the hit instead of the china edge. In a low-traffic room the bare rim is fine.

It flushes the basin the way a blow-out water closet flushes a bowl: water enters the 1-1/2 inch top inlet, moves around the rim, and drives the contents down the outlet under force rather than just rinsing them. That is what lets a clinic sink clear bedpan waste and why it needs a 3 or 4 inch waste line and a full-size 1-1/2 inch flush valve behind it. A rinse-only utility basin will not do that job.

White only, ordered as part number 9512999.02. There is no other color or finish in the run, which suits how these get specified: clinic and soiled utility rooms standardize on white so a facility replacing one basin decades later still matches the rest of the building.