The invention relates to a float control for a push-button switch, comprising a float having a fixed pivot inside a float chamber, a two-armed lever with a fixed fulcrum, one arm of said lever being designed for actuating said push-button switch, the other lever arm being connected to said float in a position spaced from said float pivot in a manner allowing for relative pivoting and sliding movement, so that said lever does not impede any movement of said float and any such float movement is fully translated into control forces on said lever.