Leaving old stopcock in place

[David Rigg]

My main stopcock is passing slightly when closed and difficult to operate so I intend to replace it. It is very close to the concrete floor making it very difficult to make a good joint if I cut it off. I was thinking of putting a new valve above the existing one and just leaving the original in place and fully open. The gland is not passing on the old one and Ihave access to the WB vave in the street. As ever any advice welcome

 

[SimonG]

Go for it, standard if you have the room.

 

[centralheatking]

My main stopcock is passing slightly when closed and difficult to operate so I intend to replace it. It is very close to the concrete floor making it very difficult to make a good joint if I cut it off. I was thinking of putting a new valve above the existing one and just leaving the original in place and fully open. The gland is not passing on the old one and Ihave access to the WB vave in the street. As ever any advice welcome

I like peace of mind, turn off outside and fit new. The leaking one will not get better and leak anyway when you turn off the new stop tap. Centralheatking

 

[David Rigg]

I like peace of mind, turn off outside and fit new. The leaking one will not get better and leak anyway when you turn off the new stop tap. Centralheatking

Thanks for the reply.
My issue is the old valve is close to the floor and there is not enough pipe to make a new joint easily. Hence my question about putting a new on in line. When the new vave is in the old one will be obselete so it can pass all it wants as long as it doesnt leak

 

[Stigster]

It's letting by, not leaking CHK. In my opinion he's fine to cut in another valve downstream and leave the old stopcock fully open and then leave it well alone.