What size lead lock to use

[midsman]

Hello, I have a length of lead pipe to a garden tap. The lead pipe has been sweated to copper and this 15mm copper is connected to the tap. There is a leak in the lead pipe and I want to cut the lead pipe below the leak and to add a lead lock to connect 15mm copper to up to the tap.

I believe the lead pipe is either going to be 5 / 6 / 7 lb.

My question is this... How loose should the lead lock be when first fitted (before tightening)? Should it be very tight? Very loose?

Should i get smaller leadlock and shave back the lead to get a better fit?

Or will the appropriate sized lock be very loose when fitting and then very tight when tightened up

 

[Ben-gee]

Should be tight. If you have the ‘correct’ size it often won’t quite go on and you need to shave the lead down. Use a Stanley knife and poke a wooden spoon handle ( or similar) in the pope to stop any bits of lead going in.
Usually I cut a piece off and take it with me to merchants to get y thy he right size, if not buy several and take back what not needed.

 

[king of pipes]

Any pictures available ??

 

[midsman]

Any pictures available ??

Yes. Here you go. Thank you for helping
[automerge]1591465483[/automerge]

Yes. Here you go. Thank you for helping

Circumference of the pipe is approx 80mm which gives a diameter of 25.46mm

 

[king of pipes]

Not alot in it so go for the 7 lb version and file the lead to fit

 

[midsman]

Not alot in it so go for the 7 lb version and file the lead to fit

Thank you very much for that. Appreciated. Have a great evening