Drainage water are drain water and infiltration water, drain and infiltration water, surface water, drain water from building basement, drained rain water, roads, streets, parking areas. Drainage pumps can withstand particles to a size up to 10 mm.
Effluent are industrial wastewater without toilet waste, water discharge from economic activity (water which has been used for production, including cooling and flushing water). Dirty water and untreated wastewater without discharge from toilets. Effluent may contain fibers and suspended matters not bigger than 39 mm.
Sewage are wastewater, water discharge from toilets or water discharge from residential and commercial buildings.
Sewage contains everything that possibly can be found in wastewater, unscreened wastewater with toilet waste from public and private buildings. To avoid clogging in civil buildings, agricultural companies and factories the use of pumps that allow the free passage of solid matter with size of at least 40 mm.