cutting cistern lid

[lesbirch]

I need to cut about 6 mm off the back of a ceramic cistern lid.

Any ideas how to do this (and what tools to use) to minimise chance of damaging or chipping the surface finish

 

[kevplumb]

125 mm grinder diamond disk steady away doddle

 

[Bahco]

Could try an angle grinder with a diamond cutting disc but will be messy and won't look very good
Have you no play in the toilet to allow it to come forward the reqd 6 mm

 

[kevplumb]

are you extracting m8

 

[TexMex]

You'd probably find it easier to scrape 6mm of plaster off the wall.

 

[ChrisR]

First I'd jam summat behind the cistern and see if it leaked when it was flushed. If not, I'd leave it like that, unless it really showed.

 

[lesbirch]

Thanks for the suggestions

I could not find a summat, but used an old thingy to move the cistern away from the wall. To my surprise (it is a close coupled toilet) there was enough play to make the lid fit ok

Thanks again