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drain The shower drain will only be 12" above the P-trap. The pipe in the picture was just an odd piece I stuck in to show that something goes up. The floor level is actually at the very top of the final 1/8 bends of the vents. My garage is about 24" lower than the bath floor.

Yep I've done this too. Yep, just wipe with a rag. I wipe immediately after sweating a joint too, just 'cause it looks prettier. Charles

Thanks! Thanks nhmaster & HJ, Very reassuring! nhmaster: The 1-1/2" vent for the shower is dry and comes off at 45° from horizontal, I'll review my understanding of when that's appropriate for a horizontal run. HJ: The 2" piece for the standpipe P-trap will emerge through the band...

Jeez, here's the pic Sorry, I didn't mean to post that. I had trouble getting the picture to embed. I hope this works. ------------------------- After laying out my shower drain run I got a bright idea (actually, my buddy's wife suggested it -- I'll take any blame, though) I could easily...

After laying out my shower drain run I got the bright idea that I could easily splice in a washer standpipe for the garage, through the band joist. I stubbed together the layout below to illustrate my question. The section on the far right is for my proposed washing maching standpipe and...

Thanks! Thanks HJ, I just can't tell you how reassuring a simple nod of the head like that can be. I got mysef worked up into a tiz' on this darn piece. I think I'm learning how to see things by rearranging them as you described too. Thanks again, Charles

Hi all, Would this venting arrangement be proper? I'm still in design mode here. Although not drawn -- further down, this 3" vertical stack will go through a vertical 3"-4" bushing and a 4" SanY with cleanout and then through two upright 45* bends to transition to the main 4"...

Thanks Mike, Yep, I have been burned by neglecting that. BTW a silver sharpie *rocks* when using black ABS. Charles

Hi all, Quick follow up on he dry fitting thing. It works. A super-PITA with the 3" an 4" stuff, but it measures the same before and after cementing. I'm cutting with a chop saw so the ends are square, and wetting to help insertion (no comments please) and of course drying and cleaning...

Actually, I've seen that advice here before and had my antenna up. I measured the pipe lengths from the bottom of the sockets and can tolerate a little error in most of layout anyway. For fun, I'll measure a dry-fitted join before and after cementing and see if there's an appreciable...

Awesome. Thanks. All of it makes sense and the picture is coming into focus. One friend also advised, "have lots of 22-1/2 bends on hand for jiggling things." So far I've managed to get it done without them. Charles

Hi all, I've designed and fitted one leg of my new DWV for the toilet and shower. Thanks to advice from the forum I'm confident of the sizing and layout. I'm now preparing to cement things together and wonder if there's an order to gluing-up that you more exeprienced people have arrived at...

Once again, thank you all. I'm pretty clear about venting below the toilet with a sanY, and the potential for noise. I imagine this will end up being a straightforward and even boring install, so please pardon me if I don't follow up with pics. If it should become exciting or instructive...

Terry, I got a lot from this diagram while working out my own layout, it's tidy and illustrates several principles. I was thrown though, the first time I saw it by the 45-degree slope of the second floor toilet drain, as opposed to the usual 1/4" per foot slope. Is this a specially tolerable...

Ah. Probably why it's not common. I'll see if it's possible to fit in a closet bend if it'll help, and insulation sounds good. It will drop through the basement so should be livable in the worst case. Thanks all.

Thank you HJ, I will use a 2" SanY below the flange and then take it up to the principle DWV stack above the second floor flood levels. Is the toilet directly atop the stack a very unusual arrangement? Cheers, Charles

Hi all, I think this is a simple question, but after scouring this forum and others, I'm suprised at not finding an answer. Briefly, I can simplify one section of my DWV layout if I can place a toilet directly on the top of one 3" column of DWV soil stack. That is, no closet bend, just a...