Liquid effluent e.g. domestic usage water, chase for liquid effluent distributing system, has line terminated by forming crest to prevent effluents in float to pass towards portion, when head is raised to allow effluents to flow above crest

摘要

The chase has a variable floatability head (3) with an active float (12) having a double inclination separate wall (14) whose upper portion is inclined, so that liquid effluents are retained in a lower position of the head. Slope change of the wall is made according to a horizontal break line disposed at height, so that the line is terminated by forming a crest (15) to prevent the effluents in the float to pass towards the portion until the head's high position is reached, when the head is raised by rising the effluents in a tub to allow the effluents of the float to flow above the crest.