Water pouring through overflow? I think within is a fault next to the ballcock or one...

I think within is a fault next to the ballcock or one of the accompanying pieces.
After flushing, the water continues to riddle up until it reaches the overflow pipe, later pours out onto the drive at the same rate.
I've tried making an extention to the overflow pipe next to blu tack (!!!) but that hasnt worked.
Please, any more suggestions??
Thanks.
Adjust the globe valve. There should be an adjust screw beside it .Old metal valve stems can be bent downwards. Be carefull not to break something.


you'll hold to turn off the sea and renew the ball tap. Don't tamper with the overflow pipe it's doing its employment

added..... there's no point in trying to bend/adjust the tap as the water horizontal is already pushing it up closed as it overfills.

added more..... for the benefit of Girly Brains' dad, the float adjustment is to set the valve to 'close' at the required sea level and is a set and forget adjustment. If subsequently wet begins to intervene the 'closed' valve next the valve stamp is faulty.
Answers:    (In order of seriousness) any:-

1) Adjust the ball-valve up a bit tighter. (Bend the ball-arm down or use the adjusting nuts on the ball-arm.)*

2) Renew the ball-valve washer (get from B&Q, etc.)

3) Re-seat the ball-valve, (re-seating tool needed, carry from good tool/DIY store.) Plus step two.

4) Renew the ball-valve (get from B&Q, usually comes complete, near ball.)

Turn hose off at fundamental stopcock for 2), 3) and 4).

Redirecting overflow (to drain, etc) is against building regulations and can result in indoor flooding - ie, if flop becomes catastrophic and overflow cannot cope (it will flow out of the top of the cistern onto the floor).

If gone overflowing, will almost certainly freeze contained by sub-zero temps causing [a] (if frozen solely in the overflow): the above result but more slowly; or [b] (if frozen contained by pipe supplying the ball-valve): a burst pipe. (Running water evacuates steam thus causing freezing. Still wet absorbs surrounding grill thus preventing freezing).

Good luck.

* There is a point, contrary to answer one, as long as the overflow is not being overwhelmed. In which armour you would have an internal flood anyway. It might basically not be turning itself off tightly adequate, with the resulting flow mortal managed by the overflow. It is what the adjustment is for. Just similar to if you do not turn off the pudding basin tap ample - it keeps dribbling until you do.