What is this patch in new plaster?

Sarah Pilkington · 9 May 2019

About a month ago we had a shower removed and the walls plastered ready for wall papering however there’s a strange circular patch left where the shower valve was. It doesn’t feel wet but is grainy to the touch. Could this be mineral deposits or as I fear water coming through where the valve hasn’t been capped off? Thank you for your help!

footprints · 9 May 2019

Might just be filler which is a different texture and thickness to the surrounding plaster.

ktuludays · 9 May 2019

You'd know about it if it was leaking, the wall would be very wet

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What is this patch in new plaster?

Sarah Pilkington

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