Usually in the cistern of the toilet in an actuator of a shutoff valve on the lever set hollow plastic float. If its integrity is violated, it fills with water and stops working. As a consequence, continuous noise of flowing water, condensed moisture on the tank, dampness and mold.
Radically and just to correct the situation will help a stick of foam, which you must impose on the lever instead of the float.
Recommend to read
SCHOOL AIRCRAFT (PART 2)
In the previous issue of the journal "modelist-Konstruktor" readers acquainted with the design of the aircraft "Cree-Cree" of Michel Colomban, who received a truly worldwide fame....
ELLIPSE VS CIRCLE
To use a bike instead of round sprocket Ellipso suggested in 1892 Professor V. Prusakov. He decided to put the rods along the minor axis of the ellipse that has allowed more efficient...