A ballcock is a mechanism for filling water tanks, such as those found in flush toilets, while avoiding overflow.
It consists of a valve connected to a float by means of a lever, mounted near the top of the tank. The valve is connected to the incoming water supply, and is opened and closed by the lever which has the float mounted on the end. When the water level has risen to the desired point, the float forces the lever to close the valve and shut off the water flow.
These devices are sold at most hardware, plumbing supply, and home improvement stores.
The ballcock assembly according to claim 1 wherein said standpipe outside surface is tapered such that its cross-sectional diameter at the bottom of said standpipe is greater than its cross-sectional diameter at the top of said standpipe whereby said streams flow along tapered surfaces.
Ballcock assemblies control tank refilling and have a float which senses the water level in the tank and stops the flow once a desired level is reached.
The ballcock assembly looks more complicated than it really is. When you go to a hardware or plumbing-supply store to buy a new ballcock assembly, you’ll find that both plastic and metal units are available.
Unscrew the float arm from the old ballcock unit and remove the refill tube from the overflow tube.
One advantage to this type of ballcock assembly is that it lets the water run full-force until the tank is filled.
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