Overflow leaking

Umpalumpa

Looking for advice

A while ago I had a leaking overflow pipe so I replaced the ball cock which was in pretty poor condition.This solved the problem but not 1 year later my problem is back and my overflow is leaking again.
I checked out the ball cock and it's in perfect condition so surely it can't be the ball.

Anyone have any ideas if it could be something which I'd need to get in a plumber(how much do they charge these days)

Outkast_IRE

Umpalumpa wrote: »

Looking for advice

A while ago I had a leaking overflow pipe so I replaced the ball cock which was in pretty poor condition.This solved the problem but not 1 year later my problem is back and my overflow is leaking again.
I checked out the ball cock and it's in perfect condition so surely it can't be the ball.

Anyone have any ideas if it could be something which I'd need to get in a plumber(how much do they charge these days)

Maybe you should of bent the arm of the ballcock slightly when installing it, this would usually be done by plumber when he installed the original one.

Other possibility is some grit/debris came in with the mains water and is preventing your ballcock from closing 100 percent fully in this case turning off the mains water and opening up the ballcock is an option.

Im assuming its a standard ballcock you installed , brass with ball float on the end?

Umpalumpa

Outkast_IRE wrote: »

Maybe you should of bent the arm of the ballcock slightly when installing it, this would usually be done by plumber when he installed the original one.

Other possibility is some grit/debris came in with the mains water and is preventing your ballcock from closing 100 percent fully in this case turning off the mains water and opening up the ballcock is an option.

Im assuming its a standard ballcock you installed , brass with ball float on the end?

Ye standard ballcock.Didn't bend it at all.I'll give that a try

Joey the lips

Is your heating working? Granted you might not have it on!

Umpalumpa

Joey the lips wrote: »

Is your heating working? Granted you might not have it on!

No problems at all with the heating

Joey the lips

Umpalumpa wrote: »

No problems at all with the heating

Do you know if your heating is a closed or open system?

Umpalumpa

Joey the lips wrote: »

Do you know if your heating is a closed or open system?

I've no idea.how do I find out?

Outkast_IRE

Umpalumpa wrote: »

I've no idea.how do I find out?

is there a second cistern in the attic, it would be much smaller than the main one and would also have an overflow, so there is a chance its ballcock isnt functioning correct(if you have this tank)

Umpalumpa

Outkast_IRE wrote: »

is there a second cistern in the attic, it would be much smaller than the main one and would also have an overflow, so there is a chance its ballcock isnt functioning correct(if you have this tank)

No there's just 1 in the attic

JohnnieK

The mains could be pushing back up the hot at a mixer tap in the kitchen if you have one.

You can tie the ball cock up and drop the level in the tank and mark it. it will rise if this is happening.

kscobie

It could be the coil in your cylinder. If there was a pinhole in the coil, the water from the big roof tank would try find its own level and overflow through the lower small tank?