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Old 05-01-2015, 09:50 PM   #16
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"Ghost.... I got a little confused here....assuming there is no wet/drainage above the toilet install.... can not the main stack function as the vent...????"

Since he was installing the toilet in the basement and looking at the picture and seeing a Clean out I immediately knew he was cutting into a waste stack for the new install.

So to answer your question if nothing is draining down the stack from floors above then it is a vent and a toilet would be vented. But since the upper floor or floors was draining down the stack it is a waste stack and is not considered a vent.
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Old 05-01-2015, 11:21 PM   #17
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Quote:
Originally Posted by MTN REMODEL LLC View Post
Ghost.... I got a little confused here....assuming there is no wet/drainage above the toilet install.... can not the main stack function as the vent...????

TIA

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If there is no wet/drainage (as you refer to it) above the toilet then it's not a main stack- it is a vent.
UPC allows limited wet venting for 6 vertical feet and the fixtures must be on the same floor. Also, only 1dfu or 2 dfu fixtures are allowed to discharge into the wet section. Maximum amount of fixtures is 4
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Old 05-03-2015, 10:17 PM   #18
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right now,it's looking like I'll be going with a "floor mount rear discharge" toilet mainly because of the help I've gotten here. I've been looking at various toilets to buy and am sort of intrigued by the ones that are known as "tankless flushometer" toilets. I'm intrigued because they look like the kind of toilet you see in a public restroom. didn't think they'd be used in residences but I've read that these are getting popular. (and the ones I've looked at are cheaper) they're also supposed to be more reliable. anyone have any experience with these? any comments?

tnx,
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Old 05-04-2015, 04:38 PM   #19
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As long as you use a 3/4" water to it it should be fine. You also need enough water pressure.
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Old 05-04-2015, 07:43 PM   #20
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yes,I read today that they need a healthy volume of water and this means a min. 3/4 supply...have to look into that. pressure should be no problem since I've got 90+ coming into the house.

tnx,
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Old 05-05-2015, 06:26 PM   #21
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Quote:
Originally Posted by Ghostmaker View Post
As long as you use a 3/4" water to it it should be fine. You also need enough water pressure.

I think I'm back to buying a regular "gravity flush toilet". although the pipes going to my proposed toilet location are 3/4", all the stuff I've been reading today says that I need 1" min. for a flushometer type toilet to work. 3/4" would be the max. size pipe in this house anyway since the water meter is 3/4". sort of makes you wonder how anybody gets a flushometer to work in their residence 'cause I think it's kind of rare for 1" pipes to be found in any bathroom,isn't it?

tnx,
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Old 05-07-2015, 09:59 PM   #22
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You'll need a 3 3/4 in center off the floor to mount a floor mount rear flush toilet. I would suggest getting the abs tee to see if it is a possibility. Remember you need at least 1.5 inch piece of pipe off the bottom of the tee for the adapter coupling connection.

You also need to maintain the clean out. Use a pro flex band coupling cast to plastic band.

You will also need a vent on the line .

Make sure when you frame you follow manufacture instructions .

I'm thinking of cutting off the "bell" on that cast pipe going into the floor,cutting the ABS and installing a "Fernco quick tee" (HD).The correct height of the tee off the floor will be gotten by how much of the cast pipe will end up protruding above the floor. sound like a plan?
by the way,are you talking about 3 3/4 in. because the pipe from the toilet needs some slope?


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Old 05-08-2015, 04:44 PM   #23
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Yea I always allow a bit of pitch. Make sure you check your toilet specs for the tank rear flush. I forgot which one I checked but the toilet ran in the 200 dollar area.
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Old 05-08-2015, 07:14 PM   #24
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Please don't use the rubber tee. They are not code compliant- they offer no rigidity to support the stack bearing down on it either.
You would be better off using a street sand tee attached to the cast iron with a Pro Flex coupling
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Old 05-08-2015, 10:11 PM   #25
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anybody have experience with "Niagara" toilets? it's between that and an "American standard".

tnx,
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Old 05-08-2015, 11:12 PM   #26
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NO fernco rubber crap tee allowed. We hang folks for that here.
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Old 05-09-2015, 11:48 AM   #27
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Quote:
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NO fernco rubber crap tee allowed. We hang folks for that here.

don't wanna get hung! so I guess I'll be using a regular old ABS "street tee"

tnx,
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Old 05-09-2015, 10:39 PM   #28
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Quote:
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Yea I always allow a bit of pitch. Make sure you check your toilet specs for the tank rear flush. I forgot which one I checked but the toilet ran in the 200 dollar area.
hmm...isn't a 1/4"/foot pitch standard in DWV systems? I mean,this is something that's required by code isn't it? it's not just optional,right?

tnx,
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Old 05-09-2015, 10:46 PM   #29
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Quote:
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hmm...isn't a 1/4"/foot pitch standard in DWV systems? I mean,this is something that's required by code isn't it? it's not just optional,right?

tnx,
4" can be graded at 1/8"
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Old 05-10-2015, 01:21 PM   #30
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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,
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