... versions. No wear, no maintenance Vinflo submersible float switch for water pump/station Vinflo-06, Vinflo-13, Vinflo-20 Level Regulator MaterialBody: ... wear, no maintenance! In sewage pumping stations, for ground water and drainage pumping — in fact, for most level control ... : Typically four regulators are used in a two pump station. Vinflo mechanical cable submersible float switch for water pump