basement bathroom roughin drain and venting2

Basement bathroom layout with rough-in drain and vent. A virtual tour.

[jwblount]

So the only T you people noticed that was backwards was on the drain system at the shower and not notice that all of the T's in the vent system is facing the wrong way of air flow!

[Pipeleier]

Sanitary tees are not to be used on their back and the vent connection for the shower is installed backwards. Also some of the vent fittings are installed backwards

[danlovins]

Please don’t use this drawing!!!There are some major mistakes on it. Sanitary tees backwards, wet venting, sizing of pipe.

[joshuamoore_]

The santees are not are supposed to be there, you need combos with a long turn and the flow pointing to the direction of the grade downward flow of the main. Plus the toilets supposed to have a three inch vent stack and a clean out, then if the dfu's(drainage fixture units) allow reduce it to two inch above the clean out. The Santee's in the on the vent piping are pointing the wrong direction also. The flow of the sewer gas is supposed to point to the vent pipe end above the roof. This must be a point out what's wrong with this plumbing diagram video.

[tylerwhitfield]

I wouldn’t use standard 90’s for the toilet flange, just Wye + 45 to the flange. I would typically set up a wet vent to avoid having to vent three separate fixtures.

[omegaplumbing]

The mistakes are numerous.
1) toilet should wet vent shower and lavatory. (this would correct the other mistakes)
2) shower t-wye incorrect direction and a t-wye or santee is not a drainage fitting should be a wye.
3) toilet incorrect it 180 back on itself.
4) 1/4 bends on turns incorrect
5) 3x2 tee wye on its back incorrect for toilet
6) no cleanouts on 2 inch coming out ground
7) bushings should not be used but coupling reducers for servicing.
8) vent tees wrong direction
9) Washer box p trap too high off ground should be bewteen 6-12" inches
10) P trap too close to santee creates s trap. Should be twice the distance of the pipe being used 2" would be at least 4" pipe not hub to hub.
11) Washer box drain dumping on top of laundry tube drain not good practice for suds relief.
12) You cant wet vent these fixtures unless the drain pipe is 2 pipe sizes larger. The drain should be 3 inch then a 3x2 wye for the washer box, then a 2 inch santee on top of that serving laundry sink.
13) backwater valve should be on the main preferably outside and the access brought to grade.

[LubaLuba]

But how can add a new shower drain to existing toilet drain on concrete slab ?? The cast iron pipe for the toilet come up from below so I need to cut before toilet flange but do I need to make a large hole / diameter??Thank you!

[MrDarren]

Why would you run the toilet with two 90s? Why not just a 45 strait to main drain? Same with shower

[karlhalvorson]

If that's a SketchUp model, I'd love a copy of it. How can i get one?

[hyster]

Wet venting, tees are backwards. Another thing, you can’t use a santee on its back. You’re suppose to use a combo

[jesusortiz]

Thanks for sharing with us.
Could I install 2vent lines o 1 is enough. O is not allowed to add 1 extra in 1 circuit?

[Kenisproactivehere]

Almost a great video BUT...it moves too fast to read clearly. Thanx

[skycladraven]

What software did you use to create this video?

[borispeck]

Sorry check your horizontal venting fittings ????

[marka.]

I though the toilet couldn't flush past other fixtures?

[brandonisrael]

The sanitary tee coming off the shower, for the vent, should be flipped around. You should always flow down hill.

[TheSpatulaCity]

1:29 Not enough horizontal pipe after P trap? I'm not a plumber but I've learned that there needs to be at least a length of pipe equivalent to double the pipe diameter after a P trap. Otherwise it can act like an S trap and siphon the water out of the trap and leave sewer gases inside.

[eng-vfgh]

name of this animation program can you give us the name sir

[brucedeleskey]

This is the way it should be shown 1 2 3. If you don't understand this. Don't try this because you're a dangerous

[rocketrider]

Does the laundry sink need a p-trap? I didn't see one. Thanks for the video .... this info never gets old !!!