Water system over pipe leaking how do I adjust the ballcock please.


How does one adjust the ballcock in the water system from overflowing?

There are many different valves, some have a float ball on the end of a brass rod, if this is what you have you can bend the brass rod so that the ball is lowered in the tank.
If you have on that has a cup that floats up around the shaft of the valve it will have a stainless wire attached to the cut, there is a way that you can make the cup go further down into the tank.

Are you taliking about the toilet tank or something else, if you taking about the toilet tanks, see the images below and tell us which one is yours, Thanks.

John