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Old 04-11-2012, 06:16 PM   #31
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what vents? none of the fixtures in my house are vented anywhere else except for that main stack that they run into. Do you want me to take pics of the pipes under the sinks and behind the shower access panel?

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Old 04-11-2012, 06:30 PM   #32
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Okay, okay , okay. If this "saniplus" is like a Sovent system, doesn't that change everybody's answers? Is this a combo waste/vent stack? I really don't know. I have only seen a sovent a couple of times, never really installed one.
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Old 04-11-2012, 07:10 PM   #33
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The saniplus is nothing like a sovent system.actually it's the opposite.sovent slows the draining water down to prevent breaking trap seal.as far as your venting issue if you don't have any vents on anything else in your house why change.those pipes in the basement are drains dude.ive put in multiple saniflow systems and have allways vented the way I've told you.im done with this thread but my advice is to contact your local building dept and ask them or go buy a how to book cause if you can't understand basic venting I'd hate to see your new bathroom
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Old 04-11-2012, 09:03 PM   #34
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Originally Posted by dwcopple View Post
I NEED TO VENT MY SANIPLUS SYSTEM ABOVE ALL THE OTHER INLETS FROM FIRST FLOOR DRAINS. I am trying to figure out how I can do that with only 8 3/8" of 3" stack to deal with. That is why I made the drawing as another option of how I can work it. I need to know if my idea will work fine.
This tells me you do not understand or know the basics of venting plumbing fixtures.
As mentioned several times, You need to tie in 6" above the highest fixture flood rim served by those drain lines-- NOT just above "ALL OTHER OUTLETS FROM THE FIRST FLOOR DRAINS"

Quoted from SANIPLUS website--- "All of Saniflo products require an 1-1/2 inch vent pipe, which must be vented to the main vent stack as per plumbing codes. The Sanicompact 48 and Sanistar models do not require a vent connection since they are considered self contained units.

It is not recommended to use an air admittance valve or a mechanical spring-loaded device as they only allow air to flow one way."

Notice it says--"as per plumbing code". You have had several plumbers from across the country telling you that code. Forget what the sales rep told you. It was wrong.
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Old 04-11-2012, 10:23 PM   #35
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Fair enough, I did not know. Thanks
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Old 04-11-2012, 10:32 PM   #36
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Since I didn't see anyone define it yet (and since he doesn't seem to understand what it means) here I go :


Taken from Oregon Residential Plumbing Specialty Code :

206.0

Flood Level Rim : The top edge of a receptor from which water overflows


This includes all fixtures : Toilets, sinks, tubs, showers, lavatories, clotheswasher standpipes, etc etc etc. . . . .
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Old 04-12-2012, 07:19 AM   #37
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that is good then. That top 1.5" line is over 6" from all the other ones. That will be the vent and I will reroute the old line down into the stack below.
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Old 04-12-2012, 09:53 AM   #38
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Lol!!!!!
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Old 04-12-2012, 10:01 AM   #39
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that is good then. That top 1.5" line is over 6" from all the other ones. That will be the vent and I will reroute the old line down into the stack below.
You just don't get it. Hire a professional please.
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Old 04-12-2012, 11:10 AM   #40
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You just don't get it. Hire a professional please.
So is the flood rim the top of my highest vanity upstairs then. These terms are senseless
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Old 04-12-2012, 06:32 PM   #41
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Quick experiment. Go to a sink on the highest floor of your home. Put a plug in the drain and stick your finger in the overflow hole. Turn on the water. Let the sink fill until until it pours onto the floor. You would have now filled your sink up to and over its flood rim. Measure your stack 6 inches above this height, tie in your venting at that height. Note: the stack may be in a wall at this level
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Old 04-12-2012, 08:27 PM   #42
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Quick experiment. Go to a sink on the highest floor of your home. Put a plug in the drain and stick your finger in the overflow hole. Turn on the water. Let the sink fill until until it pours onto the floor.
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Old 04-13-2012, 12:14 AM   #43
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Quick experiment. Go to a sink on the highest floor of your home. Put a plug in the drain and stick your finger in the overflow hole. Turn on the water. Let the sink fill until until it pours onto the floor. You would have now filled your sink up to and over its flood rim. Measure your stack 6 inches above this height, tie in your venting at that height. Note: the stack may be in a wall at this level
I did that experiment in the boys room when I was about 12 years old. Amazing how paper towels hold back water
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Old 04-13-2012, 07:14 AM   #44
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Thanks for the info. I wish you would of used layman's terms from the get go and all of this would've been much easier. I do have a question though. What difference does it make if I cut in 6" above the "flood rim"? I don't understand how if even if there was a flood or back-up that got to that ridiculous of a level of water how could it possible penetrate the sealed PVC and affect a pipe that runs out of my roof. Can anyone explain that???

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Old 04-13-2012, 09:41 AM   #45
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Thanks for the info. I wish you would of used layman's terms from the get go and all of this would've been much easier. I do have a question though. What difference does it make if I cut in 6" above the "flood rim"? I don't understand how if even if there was a flood or back-up that got to that ridiculous of a level of water how could it possible penetrate the sealed PVC and affect a pipe that runs out of my roof. Can anyone explain that???
What do you mean by water penetrating the sealed PVC? The water will already be in the pipe

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