Efflorescence on brickwork
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Hi, how long does efflorescence take to show thru brickwork. Not used the shower in our new en-suite (Loft conversion) for a couple of weeks. When the shower was installed a couple of months ago there was a leak, but could it take that long for the water/ moisture to come through the brickwork? There is no signs of a water leak in the house. Or could it be rain water from the guttering? I have pasted three after pics a before pic - any advice?