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Old 11-04-2018, 07:11 PM   #31
smifwal
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silence was a good enough answer? how deep was is? topping is good up to 2in. It might have been ok but wouldn't have been my first choice. call it practice.
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Old 11-04-2018, 07:43 PM   #32
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It was 4-6" deep....I love doing everything twice ...I should have known better....all done now! I used the quickrete primer, painted it on the old concrete, drilled 1/2" holes and screwed in some 1/2" galvanized support hooks (7 of them), mixed up 3 bags of quickrete 1101, not super wet, and packed it back in. It isn't beautiful, but it's getting covered by the shower floor!
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Old 11-04-2018, 07:46 PM   #33
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It doesn't matter how that looks, as long as you're putting the mud floor in. That's the real advantage over the foam trays, the floor doesn't have to be flat or level.
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Old 11-04-2018, 08:04 PM   #34
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Here's the hole, just before I filled it (the second time!)
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Old 11-04-2018, 08:20 PM   #35
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Looks fine, Joe.
Quote:
Originally Posted by Joe
I used the quickrete primer,
White, kinda viscous liquid? Smells kinda like Elmer's Glue-All?
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Old 11-04-2018, 09:30 PM   #36
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Yes, it said you can paint it on with a brush, or mix it with Portland cement for a slurry. I painted it, and let it dry while I was mixing the cement. It said it was to be used to bond the new concrete with the old...please don't tell me it's crap...and the sides of the trench we're not smooth, there should be plenty of purchase for the new concrete to bite in to.
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Old 11-04-2018, 09:32 PM   #37
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The kerdi drain will fit with the 4"PVC around the drain pipe....should I remove it?
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Old 11-04-2018, 09:34 PM   #38
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How wide was the paint brush you used? Cause that's a deal-breaker.




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Old 11-04-2018, 10:02 PM   #39
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Kevin, it was a cheap "chip" brush from Home Depot....I know I'm way overthinking it...lol
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Old 11-05-2018, 03:08 AM   #40
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Over thinking leads to well built, quality installations. And to drinking. Win win
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Old 11-05-2018, 05:20 AM   #41
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I'd remove the 4" pipe. You'll want mud completely around and underneath the drain for full support.
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Old 11-05-2018, 09:29 AM   #42
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Kevin, packing wet mud around the drain after setting the kerdi drain...is that what to use? The hole is deeper than 2".....closer to 5". Just mix the deck mud loose and pack it in under the flange?
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Old 11-05-2018, 10:52 AM   #43
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I mentioned the primer only because we usta use Emer's Glue-All for that application years ago and it was usually a lot less expensive than proprietary primers. It works, but these days I much favor a slurry of thinset mortar for that application. Was just curious.

Your Kerdi drain should not fit inside a 4" PVC pipe. It will fit inside a 4" PVC pipe coupler.

In any case, you're not gonna get any deck mud down in that hole beside the drain flange and it doesn't matter if the coupling is left in place. I like to toss a handfull of thinset mortar into a gallon can of deck mud and add a little water for the portion that will be packed under the drain flange. I favor the edge of a wood float for packing the mud under there.

My opinion; worth price charged.
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Old 11-05-2018, 09:42 PM   #44
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CX, the 4" PVC coupling is what I had used...I removed it! Now that you mention it, the primer did resemble Elmer's glue!
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Old 11-05-2018, 09:59 PM   #45
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The coupling shoulda been left in place, Joe. Now the hole in the slab is larger than it needs to be, but you still shouldn't have any problem so long as you pack your mud under the rest of the flange.

My opinion; worth price charged.
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