Stop cock leaks when closed

[Will_567]

My mains stop cock leaks when closed or partly open, but never when fully open. I have tried tightening the packing gland nut, but it's as tight as I can get it.

All the advice I've found says close the stop cock before attempting to repack the gland, but this is when it does leak. Is this the correct advice for all types of stop cocks?

Will

 

[hi-spec plumbing heating]

it leaks from gland when closed ?

remove gland and place ptfe tape then re-place or just fit new.

 

[RatherDIY]

Hi Will..

Not really an answer but I've had success twice by removing and replacing just the tap/gland (i.e. not the whole stop tap cos I always end up with the wrong size!! )

The only thing to watch is the depth of the replacement tap part, some are longer than others..

I'm no expert, but hope this helps
Rob

 

[Will_567]

it leaks from gland when closed ?

remove gland and place ptfe tape then re-place or just fit new.

Yes, it leaks when closed (that is shuting off the mains water) so should I close it or open it before removing the gland and placing ptfe tape? (In the hope of reducing water spillage during the repair)

Will

 

[hi-spec plumbing heating]

try it with it open. hard without seeing the situation.
but in long term if they are that bad i just change them.

 

[Will_567]

OK, I'll try it tomorrow

Will