Remove grey silcon

[barnacle bill]

Hello all,

I have some grey silicon around my bathroom and would like to remove it to re-grout.
What is the best way to remove it and leave no trace.
I have a silicon removal tool but it leaves some behind how do i get the rest off?
White spirit doesn't work please help.
Thank you in advance.
BB :(

[acsimpson]

You can buy silicon removal gel. Basically it is put on and left to work, when it's removed the silicon comes with it.

I don't know what those in the trade use but this stuff can be found in the DIY sheds next to the silicon.