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Collection Systems Technology Fact Sheet: Sewers, Lift Station
www3.epa.govcommonly used in lift stations. A trapped air column, or bubbler system, that senses pressure and level is commonly used for pump station control. Other control alternatives include electrodes placed at cut-off levels, floats, mechanical clutches, and floating mercury switches. A more sophisticated control operation involves the use of variable ...
Applicability of Air Bubbler Lines for Ice Control in …
www.erantiengineering.fiwhere Ta is the average air temperature below 0 C and n is the breaking frequency (times/day). The formation of new ice comes readily from the heat …