The main water tank in my loft overflows when full. Flushing the toilet stops the drip until the tank refills. Can anyone explain how the water tank refills and how i can adjust the ball cock to stop the drip. I have been told to bend the ballcock arm down, is this the best option?
thanks

John, August 2009

as a temp repair bending the arm works but you are better off fitting a new washer in the ball valve.

Richard, August 2009