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Unread 04-13-2010, 07:43 PM   #1
MNTileGuy
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Flood Test Question

This involves the kerdi shower that's brought me so much joy...

At the request of the HO, I did a flood test. I waited until 72 hours after installing the kerdi on the pan per instructions. Filled it with water Saturday am and marked the water level in several areas.

Come back this morning and the water is roughly 1/8" below the marks. Do I have a leak? Evaporation? A little water sneaking down the drain?

Since its been 3 days, I'm hoping it's just evaoporation, but your thoughts would be appreciated.
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Unread 04-13-2010, 07:51 PM   #2
dhagin
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Schluter says 24 hrs from setting kerdi to start of flood test, minimum. Flood test is 24 hrs. 1/8 in 3 days would be imperceptible difference after 24 hrs, I'd say good to go.

That much could have evaporated... has there been any penetration at seams?
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Unread 04-13-2010, 08:11 PM   #3
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after that long I am thinking evaporation too
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Unread 04-13-2010, 08:12 PM   #4
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That's what I was hoping to hear!

Oops, I guess I misunderstood the 72 hour thing. Overkill on cure time can't hurt though!

The only reason I let it sit 3 days is that I wasn't working anywhere close until today. Really put it to the test!
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Unread 04-13-2010, 10:34 PM   #5
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When I flood tested the one I built over the winter, I used a 2" test plug (rubber with a bolt to draw it up real snug) to eliminate any chance of it leaking. Worth a few bucks to be sure, and I can use it again.
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Unread 04-14-2010, 04:02 AM   #6
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you can use a flood plub that pumps with a bycyile pump
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Unread 04-14-2010, 04:55 PM   #7
MNTileGuy
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I did use the 2" inflatable ball with a foot pump. Maybe I didn't get it full enough?

Sounds like the general consensus here is that 1/8" drop over 3 days time isn't something to worry about as there's alot of possible explanations.
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Unread 04-14-2010, 05:20 PM   #8
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If you lost only 1/8" in water depth to evaporation in conditioned space over three days, Brad, I'd be looking for a water leak.





A leak into your shower pan.
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Unread 04-14-2010, 05:45 PM   #9
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cx-

Don't me messin with me here! Had enough headaches with this kerdi business!
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Unread 04-14-2010, 07:25 PM   #10
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If it is a conditioned space with A/C running you could loose that much in 3 days in my opinion, but what do I know............. Hammy
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Unread 04-15-2010, 04:33 AM   #11
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wonder if hydro ban will stick over kerdi....................hell brad i have stated the obvious need a technical person on site for a problem solve and cant them to call or respond...but they call brian and talk to him like they are brothers..........hey brad i saw somewhere on the forums that some one used a caulk tube and duct tape to do a flood test
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