Elevator Sump Pump
Here is a great information site on elevator sump pump requirements in Florida. It is written by Tom Waardenburg from Florida Certified Elevator Inspections, Inc. Here is a brief summary of the elevator sump pump.
ASME A17.1, 106.1b (3) states: “Drains connected directly to sewers shall not be installed in elevator pits. Sumps may be installed. Where drains are not provided to prevent the accumulation of water, sump pumps shall be provided”.
This code change was made to ensure the removal of accumulated (accidental) water, from such sources as fire sprinkler heads or flooding from a source above the first landing. This provision in the code is to assist in maintaining elevator service during a fire emergency. It does not state that the pump must keep up with or surpass the volume of water from sprinklers. It was not intended for the removal of accumulated oils and/or hazardous materials. The ASME A17.1 code is not an environmental code but an Elevator Safety Code. “Drains connected directly to sewers shall not be installed in elevator pits” was not added to prevent hydraulic oil or gear oil from seeping into sewers. Instead, the purpose is to prevent methane gas from the sewer system from entering into the elevator hoistway and potentially causing an explosion. The sump pump should discharge into an open-air environment. Connection to drains could cause problems in a fire emergency due to traps within a drainage system.