Help!

Hello, long time reader, first time post.

I am in the middle of a bathroom remodel, and would really appreciate the forum weighing in on my mock-up photo before Mr. Inspector arrives. The original design has changed once I ripped up the floor and discovered what I was actually working with, please let me know if I am missing anything with this design.

No offense meant to anyone, but I have seen some pretty whacky sketches on here, so I've done my best to convey my scenario by just labeling a photo. I also included the same photo without labels in case it is too busy to understand. The dimension from the toilet flange to the wet vent reads 48".

I welcome any tips, advice, red flags, critiques, no-no's, etc. Thanks so much in advance for any responses, this site has really helped me out!

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Oh yeah,

I've also read about the advice given being taken for granted by the cut-and-run type, I really appreciate everyone's time and tried to show it with a detailed picture. I will also post an 'after' picture of how this project turns out. I am only 28 years old and really rely on advice from seasoned vets.

Thanks again!

my main concerns would be with the santees being used to connect horizontal waste lines. A wye and 45 (combo) fitting should be used, in this instance.

vents

You should vent the toilet before the lav drain,also it looks like 1.5 from the
shower drain shouldbe2in.Itdoesnt look bad though.

Thanks

It is possible for me to switch out the santees with a wye/45 combo, I was trying to keep disturbance to the joist to a minimum and the santees permitted me to pass through the joists more perpendicularly (say that three times fast) with a smaller hole.

On the backside of this wall lies another bathroom, from which you can see the vanity plumbing coming through. I didn't want to re-invent this existing plumbing, which was the reason for employing a wet vent for the toilet via the sink drain as opposed to giving it a dedicated vent. There just isnt room without messing with the existing plumbing.

Is this method of venting the toilet satisfactory? Or are you advising to vent it on its own? I don't want to be standing there when the inspector comes with a half-baked design, but I thought that wet venting in this instance would be sufficient.

Also, the shower and toilet/sink vent PVC is all 2".

Thanks again so much for your time, I really appreciate it.

drains

You do not indicate sizes, but I assume the lavatory drain and shower are both 2". He will not be too happy with the sanitary tees in the drain pipe, or the cross for the lavatory. In fact he should reject them. The toilet vent is okay.

Thanks!

The vents for the shower and lav are all 2", sorry.

I will replace the santees with wye/45 combos before he visits, but the lav drain I was unaware of an issue. Why is a cross unacceptable, am I to drain them independently?

Thanks again, this project has taken long enough and I don't want more delays upon inspection. You guys are a huge help.

Clarification

Attached are two images from an old post about plumbing a double pedestal sink set-up. The PDF is from a poster who has a design exactly like mine, save for the 2" drain and vent I am running because this avenue also acts as a wet vent for the nearby toilet.

The photo is a picture posted by Terry (the man himself), that shows almost exactly what I will end up with once inspection days comes.

HJ, your replies to the old post seem to point the finger at the cross because of the lack of ability to clean it out, as opposed to the physics of whether the design will function properly. Is this what you mean by my inspector potentially rejecting the cross? What if I install an exposed cleanout (with a coverplate for the finished wall) just below the cross? Does this solve my dilemma?

Thanks very much, I owe you a beer if I pass on the first try.

fixed!

I am showing a close up of my double lav drain cross. I have replaced my santee with a wye/45 combo, but it raises another question. Since my lav drain is acting as a went vent for my toilet, I am wondering if it is still acceptable to vent it on an acute angle as shown in the picture.

I am also still hoping someone can teach me why it is wrong to use a cross as I have done to drain/vent dual pedestal sinks.

Just trying to bump ths post for help on my two questions. Thanks very much for taking the time to help!

1. Is my wet vent for the toilet OK even thought it is at an acute angle?? (see above photo)

2. I have seen tidbits of this discussion but am having trouble getting a definitive answer, what is the proper way to drain my double lavs, instead of using a cross? One tee on top of another?

Thanks again to whomever can respond.

lavs

The proper way to drain the lavs is with the "back to back fixture fitting" shown in the picture above. Adding a cleanout is not a cure, because even this fitting should have a cleanout in the vertical line below it, although your line is short enough that it should never have a problem.

I think what HJ is saying is that the fitting is the wrong one for this application...
You cannot use a double santee - you have to use a double fixture fitting...
It has a bit more drop in the branch lines at the join - but not as much as a combo...LOL -

thanks

Since no one mentioned any potential issues with my wet vent venting the toilet at an acute angle, can I assume this is common and acceptable?

I know the fitting you speak of and will replace my current mock up with this double fixture fitting for the lav.

Thanks again,