Have a problem with mould on our bathroom walls despite good ventilation ie we open the window after use etc... To get rid of the mould previously we have used polycell 3 in 1 mould killer, and then we applied an anti condensation paint, before repainting in the colour we want. This worked for a while, but now the mould is starting to return. Any suggestions on how to obliterate it once and for all
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