I had a problem with black mould on the silicone sealant in my shower. Having seen a few videos and suggestions on using bleaches or vinegar and a couple of unsuccessful attempts, it was not clear which type of either bleach or vinegar to use, so I tested a few to work out which is best. Nearly all the advice I have seen uses the same method for application which seemed to be pretty successful once I had found the right product. I hope you find this helpful and please leave a comment if you have any other useful suggestions on either application method or products. Thanks!

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