Guys, I've got a leaking elbow on a boiler, I've Tweaked the nut but hasn't stopped. Looks like a normal 15mm elbow are they standard on boilers? Thanks
Diy'ers wrap PTFE around threads, it's the olive that makes the seal so wrap it around that. Hard to tell from pic but other connection on that elbow will be a fibre washer which may need replacing
Hi It’s definitely a case of look twice and repair once, leaks have a habit of dripping from the low point! Think about it, Any leak above will drip down ! Regards Peter
There is a case for wrapping PTFE around the threads - (i) it is a lubricant (ii) because of this it allows the compression nut to be tightened smoothly instead of juddering and possibly resulting in an under/over tightened joint if you end tightening at the end of a judder.
You can apply soldering flux around the whole joint and apply heat until the old solder melts. If the leak still continue then cut out the entire elbow then solder in new fittings.