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Unread 03-09-2019, 11:32 AM   #1
Sledgeyj
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Kerdi drain flange too low

Thanks in advance to all who offer advice.

I am in the process of installing the schluter shower kit. I have the foam pan mortared down several weeks ago. Issue I just realized today is the drain flange sits 1/4" lower than the floor of the pan. I assume that is going to be an issue that needs to be addressed prior to me installing the Kerdi on the floor. Please advise how to address this.

Thanks again for sharing your expertise
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Unread 03-09-2019, 11:55 AM   #2
Gozo
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If the drain is not in yet, just use a thicker mortar bed when setting it and don’t smoosh it down all the way to meet the foam tray.
I had not realized this when setting mine and got the same slight recess of the drain flange from the plane of the pan. Kerdied over it and had a divot to deal with when laying the tiles. Wound up just getting the tiles up to the slope plane with the mortar when setting the tiles. Hasn’t been an issue at all.
Make sure to do a flood test before tiling for peace of mind.
Post pictures. We love pictures.
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Unread 03-09-2019, 11:57 AM   #3
Sledgeyj
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Flange is set but not drain grate assembly. But as it is, the tile won't sit right....
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Unread 03-09-2019, 12:07 PM   #4
Gozo
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is this the stage you’re at?
https://www.johnbridge.com/vbulletin...1&d=1500338748
If so, don’t make yourself crazy. You can Kerdi and level the divot with some medium set mortar (many “thinset” mortars are classified for up to 1/2” which is more than you’ll need), or level it first and then place the Kerdi.
Others will jump in with various options. I’m just a DIY slob like so many of us here, so I can’t attest to if it’s “kosher” or not, but only to if it worked for me.
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Unread 03-09-2019, 12:15 PM   #5
Sledgeyj
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Yes, exactly
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Unread 03-09-2019, 03:08 PM   #6
John Bridge
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Looks like Jeff pretty well covered it, Sledge.
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