Should orange-tinged silicone be replaced?

[Msteain]

Hi all,

I've been working on updating the silicon in one of our showers, and I noticed a light orange/brown tinge on some parts of the old silicone. It mainly appeared to be below tiles that were coloured and I didn't think much of it, however I'm concerned that some may have fallen into the gap between the wall and floor tiles behind where the silicon was set when i've been removing it. 

Some areas of the internet say mold, other says dont worry so I was looking for some advice. 

  

[JacobZ]

Hi @Msteain,

I can't say with 100% certainty, but it certainly seems like it could be mould. 

If you are concerned that some has fallen between the floor and wall tiles, you can always run a vacuum cleaner along this crack to remove any loose material, then spray some mould treatment in the gap before reapplying silicone to cover.

You might like to check out How To Control Mould and How To Silicone a Gap for some further guidance.

Let me know if you have any further questions.

Jacob