The grout on our bathroom tiles is mouldy and the old tricks like toothpaste
and grout cleaners barely work. We asked a tiler to replace the grout but
he said the tiles were too close together and he risked breaking the edges
off the tiles.
Please can I have suggestions - do I need to remove the old grout and if so
Also, how do you stop the mould coming back?
I use a good quality thick neat bleach, put on with a soft toothbrush,
and leave it on for a few hours before rinsing off, works every time and
seems to last for months. I also use that method for cleaning bath
sealant successfully. Usual precautions apply regarding testing and
checking surrounding surfaces to ascertain if the bleach will affect
them, wearing gloves, goggles, mask, respirator and chemical protection
suit, and I try and keep the bleach on the part being cleaned as much as
possible, but I have had no noticeable problems with the tiles, or the
bath, and I have been using this method for several years.
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