Indirect waste pipe is defined as a pipe that does not connect directly to the waste system but conveys liquid waste by discharging into a plumbing fixture (indirect waste receptor, floor sink, or similar code approved fixture) which is directly connected to the waste system. This installation provides an air gap which prevents contamination of food handling and other equipment required by code to be indirectly connected. Most code authorities require the receptor to have smooth, easy to clean corrosion-resistant interior surfaces. Regular floor or hopper drains do not conform to these requirements because they have rough interiors with pockets and crevices which can harbor dirt and bacteria. These unsanitary conditions can spread disease, create unpleasant odors, and endanger human lives.

In the early 1960's, Smith developed a complete line of Sanitary Indirect Waste Receptor Drains for installation in non-traffic areas. The interiors of the receptors had large radius corners, were ground smooth, and had an acid resistant coating applied making them easy to clean. A full line of dome strainers, sediment buckets, partial grates, covers, and funnels was developed. There was a Smith Sanitary Indirect Waste Receptor Drain for every need. All conformed to the requirements of the most demanding plumbing codes.

A view of the acid resistant coating facility inside the modern Jay R. Smith Mfg. Co. factory.

A demand developed for these Sanitary Indirect Waste Receptor Drains to be installed in traffic areas. Smith responded with a complementary line of Sanitary Floor and Area Drains. Hundreds of thousands of these sanitary drains have been installed throughout the nation and in many foreign countries. This success led to the trademarked brand names Sani-Ceptor®, Funnel-Ceptor® and Roof-Ceptor® to identify the expanded product lines.

Through the years, Smith has found a growing need for an even more rugged, durable and corrosion-resistant SANI-CEPTOR. Again leading the way, Smith engineers have developed a STAINLESS STEEL Sani-Ceptor®. Today there is a body type and size available for every requirement and a top design for every need. This wide selection, coupled with the Smith catalog numbering system, permits the specifier to "custom design" the SANI-CEPTOR to suit the individual needs of the particular application at mass production costs.