refreshing old grouting

[St John Scribbler]

Sorry if this has been asked a million times before but with 58 pages and 50 queries per page I would be quite old and grey by the time I found the answer.

Is it best to chip out the old grout, but if so what is the best tool to use to avoid spoiling/damaging the tiles?

Can I simply bleach the existing grouting?

Should I try to add a little fresh grouting on top of the old?

The tiles are 6" x 6" in the kitchen. I would prefer not to have to do anything much with them so any suggestions will be very welcome.

Thanks in advance

 

[masona]

Is it best to chip out the old grout, but if so what is the best tool to use to avoid spoiling/damaging the tiles?

You can buy difference type grout removal tools available from any diy shop.

Should I try to add a little fresh grouting on top of the old?

You can but I find it best to make it a little deeper for a solid grout

See here for cleaning

Also seal the grout will help