THE FLOAT IN THE TANK

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.