Absolutely right. With a cheater in a kitchen sink the flood level rim counts as the bottom of the sink so all you have to do is get the valve as high as you can or a couple inches above the bottom of the sink. My preference is as high as able.
Missing two clean-out: one, on the drain rig under or above the trap and another on the foot vent on the far side wall to snake foot vent. Yes the top of the island should have a 90 at the top and two 45s. The island rough is totally wrong and wouldn’t pass inspection in my jurisdiction (Hawaii). Because, the foot vent should begin on the vertical on the vent side of the rig so the rig is too high, reason being snaking. The mainline should be roughed in the same floor space channel as the vertical rig and the rig come into the mainline from the top using drainage fittings. The foot vent is wrong.
You'd never put in the top fittings before the counter top was done so I'm sure it's just a slapped together dry fit for the purposes of the show. They'll add a clean out
@@killax7 He mentioned that if there's a blockage in the sewer pipe under p trap but nothing told that if there will be cleanout installed to clean this blockage.
This is actually illegal in Kentucky. Here, the vent in a loop vent and drain, has to be right above the drain. So your two pipes would go through the floor, your drain will 90 directly under the vent, while the vent will T off to wherever the closest wall is, and there can be no fittings between that tee and where the vent goes up through the floor. Under that tee is another tee turned on its back with the middle pointed up to tie the vent in with the drain yet again, in case the system ever stops or backs up, the waste in the vent has somewhere to go.
It would be illegal in Ontario. In Ontario for island sinks you install a solid P-trap bellow the grade and vent it bellow the grade and connect it to a vent above ground above the flood level rim of the highest fixture. More importantly you install an end cleanout on a wye fitting and a 45 downstream of the solid P-trap and bring it up inside the cabinet on a stand pipe. (End cleanout) A secondary cleanout is going on the fixture outlet pipe of the sink bellow the tail piece for P-trap cleaning.
California code language is as follows - there are some inconsistencies with what's shown: "Traps for island sinks and similar equipment shall be roughed in above the floor and shall be permitted to be vented by extending the vent as high as possible, but not less than the drainboard height and then returning it downward and connecting it to the horizontal sink drain immediately downstream from the vertical fixture drain. The return vent shall be connected to the horizontal drain through a wye-branch fitting and shall, in addition, be provided with a foot vent taken off the vertical fixture vent by means of a wye branch immediately below the floor and extending to the nearest partition and then through the roof to the open air, or shall be permitted to be connected to other vents at a point not less than 6 inches (152 mm) above the flood-level rim of the fixtures served. Drainage fittings shall be used on the vent below the floor level, and a slope of not less than 1/4 inch per foot (20.8 mm/m) back to the drain shall be maintained. The return bend used under the drainboard shall be a one-piece fitting or an assembly of a 45 degree (0.79 rad), a 90 degree (1.57 rad), and a 45 degree (0.79 rad) elbow in the order named. Pipe sizing shall be as elsewhere required in this code. The island sink drain, upstream of the returned vent, shall serve no other fixtures. An accessible cleanout shall be installed in the vertical portion of the foot vent."
Why would you put the Y backwards for the vent on the island is going to cut the flow of air. If it gets clogged and the water starts filling back uup ,is still going to flow towards the grade.
That vertical loop vent needs a cleanout - even with a relief drain - at least here in Ohio. I did get away with a 2 way T on the drain side once though , that way you could still clean out the vent side by going up and over...which is REEEEEEALLY tough to do with the regular drain T you have in there...just sayin'.
@@bounchofbeaners6627 You didnt eat your beans that day you put in your comment did you? Any plumber doing a "clean job" would never us a "no hub band" when you are doing the ruffin plubing in a new home, you might as well put in the clean out while it is easier to do so which in a lot of cities it is code to have a clean out to pass an inspection!
Nice neat plumbing, but an clean out is required on the vertical foot vent of the island sink where it comes up in the wall over by the other sink as well as a 2" clean out for the sink drain 6" above the overflow rim of the highest fixture unless this is upstairs in which no clean outs are required except for island foot vent.
just run 3" to the island sink so you you don't need a loop vent or a relief vent or whatever you call that one. ITS STILL FLAT VENTED! NOTHONG IS DUMPING INTO THE MIDDLE ONE! and the one one the left, I hope it's coming from downstairs.
I have a kitchen sink drain that doesn't seem to drain very well and I could not locate a plumbing vent in my basement. I clean my kitchen drain twice a year, so I don't believe that the drain is simply clogged. I am thinking that the problem must be that the drain is not draining because of a lack of ventilation. How could I correct this problem? Any suggestions would be appreciated. Thanks!
Jane, thanks for your advice on the air admittance valve. While watching This Old House a while ago, I think one of those was installed directly under the kitchen sink. Is that the type you are referring to?
jeffthewhiff We call it In-line-vent which is illegal in my state So does your sink gurgle or bubble up if so could be venting problem if not it could be a lack of slope problem. FYI the vent starts above the sink trap behind the wall and upwards.
THATS SO ILLEGAL, at least here in Canada. We call that island set up a barbershop vent. Its illegal, needs to be trapped under the floor with a cleanout also just past the trap and backvented within 1.5 meters.
_____________Island drain system shown here is called a loop vent, it's missing 3 cleanouts, at the top of the loop vent you can't use 2 elbows (2- 45's and a 90), the "Vent" has to tie into the vertical section of the loop vent...not horizontal and other violations. Real plumbing is difficult....this system shown here in video will work perfect for years..... but a plumbing inspector could make them change everything. Read More
Read More It’s all wrong. I’ve roughed countless island sinks. It isn’t an easy thing if done properly. I think you understand by your comment. We know that your statement of the foot vent connection being on the vertical is a puzzlement for most people and some licensed plumbers. They get confused because there is not enough room in the floor joist. Yes, but us old school plumbers know how to squeeze in. tricks OTT.
Section 909.1 UPC this would be illegal, but different places diff code. The foot vent would have to tie in with a wye, and and straight to the vent pipe., with a clean out on the vertical vent before it ties in. 2nd the barrel would have to be a 45°, 90°, 45°, in that order. But again., that's UPC, good visuals at least. All is legal if you get the authority to authorize your design.
Hi I have a question I’m doing some diy work at home trying to fix an existing venting problem I have in my house ,,my house kitchen was plumb with a ptrap with a avv vent to the wall and then a 90 going down like 2 feet another 90 with straight pipe to the main sewer ,is this legal ???help please
@@Marcel_Germann In the US we call what you are saying a combination waste and vent. What he is doing is wrong and very costly when it clogs. An approved Air Admittance vent will work fine for an island sink.
@@joshm5816 When done properly you won't have any issues with it. The most clogs here are actually the traps, mostly in sinks. In the kitchen caused by grease and food scraps flushed down the drain, in the bathroom the traps getting clogged by hair and skin particles and grease. If it passes through the trap, it will also pass through the pipe. Except the system is defective (missallignment of the couplings between the pipes) or badly planned or realised. If you make it that way you actually have to make the pipes wider (here the standard toilet pipe is 4" instead of 3"), and you need to choose the right angle to get from one pipe into another one. This is depending on the diameters of the pipes, otherwise you'll have a noisy pipe because the pipe won't vent correctly. Every vertical stack must be vented. The thing is: The required amount of air for a correct venting is between 10 and 35 times of the amount of water that is flushed down the drain. The vent opening in the roof must be at least 2m away from any window, and at least 1m long (length above the roof).
Kelly Goodman the bare minimum code simply requires a clean out at the base of the drain before the branches underground to the building drain. Plus the ptrap can be used as a clean out. Or he just forgot to add it for he video which is most likely.
Code requires a cleanout on the vent. The vent can become clogged. All the fittings on the return vent need to be drainage fittings and the ventis supposed to be pitched at a 1/4 so it can drain back to the system in case of a back up
Ok all you armchair plumbers. Instead of quoting code to me, please tell me what other actual problems are caused by how this piping was run. It seems like it handles any of the problem cases. What is wrong with it (and logically. Not just some code or law shit) Some people are bitching about the two 90 degree fitting. What is the problem there? This pipe contains air. And if it ever did get water and if 90s lead to siphon, seems like that would be a good thing to pull the water out Waiting on logic responses
Research and Build The reason is food will not be able to vacate the topside of the island vent if constantly inundated because of a clog. 2 - 90s will create a shelf which could present problems in the vent after unclogging. The 90 and 2 45s will drain completely. I’m not an arm chair plumber I’m a former plumbing instructor at the trade college in my jurisdiction.
It's fine rough in the 2 45s and a 90 will get you another 2inches but either way is correct a cleanout on island vent side would be nice luxury but any roto rooter guy knows you can clean vent from waste side with 1/4 or 3/8 cable it will make the sanitary tee going up ,
never metal into plastic. but plastic into metal. one of the golden rules plumbing 84 gets more hello big E class mates and swim team miss u guys. ci ya
I just want to ask why those guys are using pvc pipe and not sewer and drain pipe or abs here in Arizona black Abs pipe is used for sewer pvc gets use for clean water plants and household
PVC is white(generally). ABS is black(generally) Different jurisdictions require different materials. It's a hodgepodge. But, the O.D. and I.D of the pipe., the sweep and configuration of the fittings are identical. PVC is a little harder and tends to lay flat. The glues are not compatible. I've worked in N.C. and California and it has always been ABS. But, really it's all the same. Of course, when PVC burns, it releases chlorine gas. ABS fumes can't be great.
That island loop vent system is incorrect. It is missing two clean outs. One should be on the island (vent) loop, the other one the wall, where pipe exists floor and turns from horizontal to vertical. Also, top of the loop should be plumbed with two street 45's and one vent 90 ell. Thank you
Question, because I am learning. Why does there *also* have to be a clean out on the vent side? If the drain pipe is doing its job, shouldn't there just be a cleanout on the drain side? The vent would only regulate air, so why should there be a cleanout on the vent side? Thanks!
@@candacemoon9671: Good question, thank you for asking. That is what Code calls for. I don't make the Code, I just follow it. The idea of clean outs, one from each side of the vertical vent, is to be able to snake it should sink back up into it. Thank you
I m not a plumber but I think that vent has to go by itself to minimum 6"" above the fixture than be connected. That will not pass inspection in my area. Jersey by the way.
He did go above 42 the video showed that he was well above 36, good installation, but the correct way is to add another 1 1/2foot vent with cleanout one foot above finish floor. Nearest wall. Also add 2in cleanouts at loop. Not too many plumber do it right.....
I had a job with about 20 sinks like that. I talked to the inspector and put air admittance valves under the cabinets. I vented the ends of the horizontal mains. Talk to them first when you can see a problem.
No clean outs on island No clean outs on wall connect the vent Totally wrong on lay out on rough island so far I know Long turn comby Long sweep 90 Comby outlet on top of middle inlet toward near wall Long sweep 90 plus clean out And in the island clean out in drain connect each other Whit 2 45* and a 90 I never hear a relief vent to drain
@@thomasblue6064 A dose is a spoonful of cough medicine. "Does" is the word you are looking for. Many local codes prohibit using air admittance valves as the primary means of venting a drain, because of the possibility that they could fail and not be replaced. Additionally, standard plumbing vents are typically needed for the overall functionality of the sewer. If everyone used AAV's in place of standard plumbing vents, the sewer would have no way to get rid of its build-up of gasses. This is why AAV's are commonly allowed as a retrofit to a drain that was never vented originally, but not allowed in new construction.
Now, we're going to fill the rest of the house up with this Pexto shit. Hey, as long as it lasts long enough for me to get to tha bank and cash my check, it's good enough.
The code for plumbing has become stupid . You'll need a lawyer soon just to get a cert. Oh,wait that was the idea in the first place. Hire more lawyers . Fuk it.
I am a cabinet guy and on a lot of island's I am building a knee wall and installing my cabinets against it. That pipe, if placed correctly, will go up inside the framing of the knee wall. It looks like that is what they have it set up for (blue tape on the floor is countertop outline, so they have 12" over hang behind pipe, knee wall, and then 24" cabinets) so it's just as easy to place a cabinet there as at a typical sink. If the cabinet has to come down on it, not a big deal, just cut out the bottom. They did a good job by the looks of it.
You know the crazy thing of it was… I was so new to social media 12 years ago I thought I was uploading this video for my personal use. I had know idea that anyone else would ever see it then the comments stated coming. 😀
Ron Paredez the top of that loop vent is still not to code it should have 1 90 degree fitting on top with a 45 degree one on each side, so as not to have a flat spot between the two 90 degree elbows as shown, Sorry.
Samuel Martin it could be to code for his jurisdiction. And if you're talking about a lack of clean out he may have must no bothered to fit it yet. That island vent is only dry fitted into place
Well you are watching a east coast show. Personally I hate CA and all your bullshit, hippy thinking. Every product I buy says it causes cancer in California, wtf!?! Fuckin sink and fall off the U.S. already. We only lose 1 state, we can easily make that up with a shitty island like Puerto Rico. Lol! I'm joking, but, semi-serious. Think about it.
Washington state is moving to strictly loop vents as well. I haven’t ever installed a studer unless is a valve swap. They always fail either open, allowing gas to move in or closed, choking the drain. BTW, This loop vent was done completely incorrect per UPC.
