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Possible Water Saturation Causing Dark Patch in Bathroom?

Postby GI-Joe » Mon Dec 30, 2019 11:19 am

Hi all,

Hoping for some advice. I’ve noticed a dark patch has appeared to the exterior of my bathroom wall and I’m getting concerned it could be water saturating the wall from the shower on the other side. There is also the build up of a chalky white substance which could also be related. The walls surrounding the bath and shower area are tiled and grouted so shouldn’t be allowing water through but the area that the marks are appearing seem to much of a coincidence.

Can anyone with any experience in this area offer some advice?

Thank you,

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