Cleaning Tile Grout

bigpappa

So we are having a bath tub replaced and there is nothing wrong with the tiles - its just the grout has turned dark and mouldy and I would rather try cleaning it then remove all the tiles and retile the whole area.

Can anyone recommend me a tile grout cleaner that does not ruin the grout or tiles?

Lily54

Astonish mould and mildew remover is good.

JIL

Bleach, you can also buy a grout pen that rewhitens the grout.

buildersdaughter

Bleach and plenty of old toothbrushes (I save them for this!) but I agree that Astonish products are very good

coffeehound

+1 for mould and mildew spray.

The key is to apply it many times over a day or two.

Thanks to whoever gave that advice here a few years ago, it made my old grout look good as new.

.

bigpappa

coffeehound wrote: »

+1 for mould and mildew spray.

The key is to apply it many times over a day or two.

Thanks to whoever gave that advice here a few years ago, it made my old grout look good as new.

.

Did it ruin the grout?

I don't want to make it less waterproof.

When you mean apply? Is that apply and wait 10mins before scrubbing and repeat.

Or just apply every hour or so a few times and then scrub once?

coffeehound

I just spray it on the grout lines and it then foams up and - on the first application only - I give it a gentle scrub just to remove any loose mould or grime.

Then on subsequent applications (leaving, say, a couple of hours gap) just spraying on and leaving it to do the hard work!

lindens

i use bleach spray and a brush. and yes do it a few times over a few days.
spray, scrub it into the grout, leave for a few hours. return, scrub and rinse
then keep repeating