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
WICK-TIMER
To limit flight free-flying models are often used machines with wicks. The thread connects the hooks of the fuselage and the stabilizer, locking them in the position required for the...
SIMPLE, AS A SLEDGE
My snowmobile which I called "Ayavrik", simple in construction, as intended to overcome huge snowdrifts. I was built for moving from hole to hole for ice fishing on a snow-covered ice,...