Bathroom tile grouting - help with cleaning please!

[surprisenumber3]

Only started having this problem since had a new bathroom last year but now every couple of weeks black dots appear on the grouting, and quickly spreads to thick black on the sealant around the bath if I don't quickly get rid of it.

Also a pinky colour between the tiles and sometimes orangey/yellow.

Am getting sick of it now, have to keep cleaning with an old toothbrush dipped in bleach but surely there has to be an easier way??

And any ideas why this is happening now we have a nice new bathroom?

Many thanks in advance.

it's mildew. is your bathroom ventilated? if not, that's your problem. leave the door open after a bath or shower to allow it to 'dry' out or open the window.
also try and dry the tiles after you've wetted them, maybe with your towel if it's going in the wash anyway.

bicarb will also get rid of the black stuff if you didn't want to use bleach.

I found Dettol mould and mildew remover got rid of pink bits/black bits with no scrubbing, seemed to keep them at bay for a while afterwards too. Might help, along with the drying suggested earlier?

We get the orangey residue too. I think it might have something to do with limescale (I could be wrong). TBH I'm not as clean as you though so I only give it a blitz with bleach when it gets really bad!

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