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Old 05-10-2015, 01:30 PM   #31
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been doing some reading and it seems like nearly anything in the world of plumbing which is made of "rubber" is meant to be used underground only. am I close? is that why I was going to be hung for using a "Fernco quick tee" above ground?

tnx,
Not really, the rubber couplings simply don't hold alignment between the 2 pipes being joined. When buried in earth, I suppose it would do better as the soil is pressing equal pressure around the joint- assuming the excavation and backfill was done properly.
The shielded couplings are code compliant. Here is one of the more popular brands--

http://www.fernco.com/plumbing/shiel...flex-couplings
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Old 05-10-2015, 04:28 PM   #32
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the different manufacturers of couplings talk about certain torque amounts for the screws. (Fernco talks about 60 ft. lbs.) How important is that, or should you just crank the screw down hard and not worry about a torque wrench?

tnx,
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Old 05-10-2015, 04:33 PM   #33
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Just crank it down fairly tight.
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Old 05-12-2015, 08:41 PM   #34
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been wondering about this: when I chip concrete from around the CI pipe going down through the floor,there WILL be some concrete stuck to the pipe right where the coupling will be. is this concrete residue going to affect how well the coupling works? if yes,what's a good way to clean it off?

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Old 05-12-2015, 08:43 PM   #35
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A wire brush.
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Old 05-20-2015, 03:24 PM   #36
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before I start chipping concrete from around that CI pipe,it'd be nice to know what I might find. in particular,I'd like to know if there'll be enough room to actually use a "no hub coupling". so,here is my question: in general,how far down might that CI pipe go? I mean,does "under slab" drainage have to be below the frost line? the reason I'd like to know this is I'd be curious as to whether that CI pipe with hub is actually a pipe or nothing more than an elbow that turns toward the main drain line under the slab. if it's an elbow,it might mean that there'd be not enough room for a coupling to be used after cutting the fitting to the correct depth. so,anyone care to venture a guess?
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Old 05-20-2015, 05:54 PM   #37
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It looks like a straight piece of pipe from your photo. Does it have any bend you can see right above the concrete?

Could you do yourself a favor and disconnect the ABS and use a flash light and look down the pipe. Then all your questions shall be answered.
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Old 05-20-2015, 08:52 PM   #38
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It looks like a straight piece of pipe from your photo. Does it have any bend you can see right above the concrete?

Could you do yourself a favor and disconnect the ABS and use a flash light and look down the pipe. Then all your questions shall be answered.
yeah,I COULD do that but I'd rather not disturb anything right now,thanks for the idea though!

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Old 05-20-2015, 09:12 PM   #39
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You could pull the clean out plug and use your tape measure to measure down to the curve of the pipe.
Or get an jnspection camera and take a look see
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Old 05-20-2015, 10:31 PM   #40
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You could pull the clean out plug and use your tape measure to measure down to the curve of the pipe.
Or get an jnspection camera and take a look see
good idea! (tape measure) I'll do that tomorrow and report back.
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Old 05-21-2015, 01:45 PM   #41
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good idea! (tape measure) I'll do that tomorrow and report back.
ok,here's my report: I pulled the cleanout plug and stuck my tapemeasure down there. I hit a bend just below the floor. (assuming it's a 3.5-4" floor) heck,that fitting (now I know it's a fitting) is probably part way in the concrete! I'm not going to mess with chipping concrete,it'd probably be useless since I don't think there'd be room anyway. looks like I'm back to a "wall mount" toilet since that'll let me put the sanitary tee higher on the stack. it's going to cost me more money but the headaches will be lessened. American Standard 2093.100.020 looks ok. I'll just need a "carrier",Zurn?

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Old 05-21-2015, 08:11 PM   #42
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Expensive but will work. Just frame it in properly the carrier that is.
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Old 05-22-2015, 08:48 PM   #43
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I don't know...it's STILL hard to justify the expense (YIKES! a carrier costs as much as the toilet!) for a half bath whose primary user will be ME. anyway,I'm wondering now just how much a "wall mount" is going to buy me in terms of installing that "san tee". I mean,I could end up raising the toilet so much that you'd need a ladder to get on the "throne"!
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Old 05-24-2015, 10:07 PM   #44
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in the original pic that I posted,you see where the piece of CI pipe enters the hub going into the floor? well,the joint of the pipe and the hub is sealed by some sort of "gasket" like thing made of maybe rubber. what is that? a doughnut? if I take it apart can I re-use that or do I need a new one? I was thinking of possibly putting my "san-tee" into the hub and sealing the joint with one of those things.

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Old 05-24-2015, 10:24 PM   #45
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Yes you can do that. You can also get yourself a street SAn tee so your closer to the floor by 1.5 inches.
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