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Old 03-29-2011, 07:33 PM   #1
zygiella
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woops - mortar/grout problem hardened

Howdy,

This was done by myself and I really should've had a pro do inside the shower. Never again so now, I have to clean up my mess.
It's a Kerdi pre sloped pan but for whatever reason I thought I'd over compensate when I laid the mortar under the tile. It still drains fine (for the most part, a little foot scoop action solves the problem) but the tile is a mess. How do i scrape/grind/sand off hardened mortar from the tile? I don't suppose there is a quick easy fix? So what is the long road I'm now willing to walk down. (hopefully the photo helps - all questions welcomed!)

On another note, any answers are greatly appreciated I used this forum to tile my whole bathroom and it was an enormous help. Thank you for keeping posting everyone!
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Old 03-29-2011, 07:36 PM   #2
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Tyler,

Can you take another picture a little further away so we can get a more overall view?
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Old 03-29-2011, 07:57 PM   #3
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Hopefully these help? The bathroom isn't too big so I can't get much further back. The darker black section is where the water slowly draining.
You might also notice another problem I have with an uneven tile on the step into the shower but....don't know if there's really any resolution there at all.
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Old 03-29-2011, 08:00 PM   #4
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I was hoping to get a peak at the drain. One more please....
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Old 03-29-2011, 08:04 PM   #5
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Sorry Paul, here you go! Thanks for having a look.
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Old 03-29-2011, 08:09 PM   #6
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My first thought is to install new tiles over those tiles. Use a good quality thinset to float the floor. Let that cure/dry then set your new tiles. Not the bestest idea. Perhaps another pro will chime in.

The concern is at the drain, if that can be raised up a smidge to accomodate the new tiles. The problem being the kerdi membrane over the foam base. Tearing into that is more than you want to get into.
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Old 03-29-2011, 08:22 PM   #7
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Hi Tyler, I was thinking the same as Paul. You could gingerly remove the tiles around the drain so it can be raised up.
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Old 03-29-2011, 08:23 PM   #8
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I am wondering about longer stainless screws, but what to hold the grate up.

Unless you placed a new grate directly over the old grate or use some sort of spacer. :thinking:
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Old 03-29-2011, 08:29 PM   #9
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That would be a first Paul. You could be on to something.
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Old 03-30-2011, 05:21 AM   #10
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I think the question was how to remove the excess grout/mortar from the surface of his tiles. 'Zat correct, Tyler? Or, are you trying to correct the drainage issue?
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Old 03-30-2011, 06:06 AM   #11
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Thanks guys.
Technically my question was how to scrape it off BUT...
(I wouldn't attempt again) you're saying I could put a whole new floor on top? I mean, if that could work and it saves me scraping off and maybe being disappointed in the results then maybe I just should do that. Any idea on how much it might cost? And yes, to extend the drain - please keep thinking!
I'm curious who a proper tile person could fix an improper slope but hey, I'm open to it. We're soon to sell our place.
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Old 03-30-2011, 06:11 AM   #12
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If you intend to set tile over those tile, you need to grind the glaze off so the thinset can stick better. Really dusty, but effective. Skimcoat the old tile to get the slope corrected, then set the tile after the skimcoat is cured. Use a good quality modified thinset, some thing that will cost more than $20 a bag.

Google "Drain Extender" and see what's available. You might find a product that does exactly what you are wanting to do.
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