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Unread 12-30-2020, 04:28 PM   #1
nickelec
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Grout question

Hi all need some professional opinions what were looking at is my shower floor carrara marble hearing bone and. Not sure why this keeps happening to the grout the white hazing

And in the last pic the corner where the wall meets the floors it seems.to be settling and separating

What do you suggest I use here

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Unread 12-30-2020, 05:30 PM   #2
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Do you know how the shower was constructed? We would need a lot more information to be able to figure out why the corner is sinking.
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Unread 12-30-2020, 05:43 PM   #3
nickelec
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The shower was constructed typical plywood 2x4 framing with a PVC liner and cement bed I'm honestly not sure if it was sinking or if it was just grouted that way to begin with

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Unread 12-31-2020, 10:00 AM   #4
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Anyone have anything to add I'd really like to get some opinions on this

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Unread 12-31-2020, 10:19 AM   #5
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Nick, there's just not enough information there for anyone to make a reasonable assessment of your possible problem. "The shower was constructed typical plywood 2x4 framing" just doesn't tell us much of anything about the receptor area of the shower. We don't even know what type of floor the shower is built over, for example. And without a geographic location in your User Profile it's not even reasonable to try to guess what "typical" wall framing might be in your part of the world.

Did you build the shower? Gotta give more hints.
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Unread 12-31-2020, 10:20 AM   #6
Tool Guy - Kg
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The last picture is too fuzzy to evaluate if tile movement is occurring after grouting. Can you snap another picture for us?

And can you tell us if the floor tile was installed with a cement-based mortar (dry powder that was likely mixed with water) or was it mastic (wet material from a plastic bucket)?

P.S. It seems like you’re dictating into the phone and between auto spell check changing the meaning of your words and a lack of punctuation, it’s difficult to read what you’re asking. You might wanna proof that a bit.
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Unread 12-31-2020, 12:28 PM   #7
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The floor is framed 2*8 3/4 plywood sub floor and th n mud bed on top the tile was laid I believe with a taipei thinset that needed to be mixed

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Unread 12-31-2020, 12:58 PM   #8
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Is that effloresce in the grout?

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Unread 12-31-2020, 09:04 PM   #9
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Quote:
Originally Posted by Nick
I believe with a taipei thinset that needed to be mixed...
Wanna try that one again, Nick?
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Unread 12-31-2020, 10:35 PM   #10
nickelec
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Mapei thinset sorry

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Unread 06-15-2021, 05:18 PM   #11
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What do you guys recommend as the best mold/mildew resistant grout to use in showers. I'm having a serious issues with the above posted pics being my shower floor constantly getting molded

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Unread 06-15-2021, 07:45 PM   #12
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I've heard of some grouts being mold resistant but I've never bought into it. If you allow soap to build up and it stays wet, I think mold will grow on it. In my opinion, it helps to keep it clean and have plenty ventilation so it can dry out between uses. Of course keep the door open as much as possible.
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Unread 06-15-2021, 09:23 PM   #13
Tool Guy - Kg
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What Davy said. If it’s not wet, mold can’t grow.

You could also towel dry the walls after use. Just an idea.
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