How Does a Toilet Fill Valve REALLY Work? Mind-Blowing Mechanics Revealed!

SECRET REVEALED! LEARN HOW a TOILET FILL VALVE WORKS!! This video shows the amazing secret behind something we use every day. It will teach you through video and live demonstrations exactly how the valve stem and rubber seal work together to make your toilet after every flush.


4:30 How the valve stem and rubber seal work together to turn the toilet fill valve on and off 

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