I removed the trap from my laundry tub drain because it was starting to buckle and leak - and in the process the cast iron ring around the top of the drain cracked in half, together with a lot of corroded and/or rusted additional junk. The tub is old - from a 1910 house, and probably original - with 2 drains that sloped down underneath into an oblong "cup" directly against the underside of the tub (see photo) that emptied into one drain. The ring that cracked was around the oblong cup. The sloping parts seem to be part of the "cup" (I took the screws out, which were badly rusted, but can't get the rest to budge...it seems to be rusted on). The sink might be cast iron or concrete...about 1 1/8" thick. The colors are a little off - it's grey. The drain was 1 1/2", the holes about 1 1/2", edge is about 1/2"-5/8" from tub divider, which is about 1 1/8" wide - so about 5" total, edge to edge, or about 3 5/8" center to center. Is there anything I can do to get a working drain again? The washer empties into this! (I'm a sometimes handy homeowner).