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Everything I've read on this website also leads me to believe that pex shouldn't be used between the valve and the tub spout — I am planning on using a piece of brass or copper into a threaded drop ear. My friend has hired a licensed plumber to handle all this work, so I would hope they have...

Is it possible to snake the rectangular overflow drains present on tubs like the Kohler Underscore? I am considering using this tub for my bathroom, which is slab on grade, so I won't have access to the p trap from below, once the tub is installed. I like the looks of the rectangular...

Thank you for taking the time to sketch that Wayne! That’s very helpful. For my own education, between the two options, if we pretend the first one was granted an exception and allowed, is there a difference in performance between the two? Is there any benefit to having less pipe and shorter...

Hey Wayne, what other routing options do you see? My half wall (plumbing wall) is centered on the steel beam above, so I’m not sure how else it could be routed without popping a vent through the countertop.

I believe UPC will allow the vent to run horizontally until I am clear of the steel beam overhead. Unless prevented by structure, the vent rises vertically 6 inches above the floor level rim before continuing to horizontal. Vent pipe located below flood level of rim is drainage pattern. UPC 905.3

I am working on my kitchen plumbing rough in. There is a steel beam overhead of the kitchen sink, so my vent line will have to turn a corner, as shown below. I will replace the sanitary tee I used in the mock-up with a 2” x 1-1/2” x 1-1/2” so I can eliminate the bushing. Is there anything I am...

Great idea on the tracer wire/foil tape, I'll add some foil tape 12" above the buried line. Reached out to my inspector, they had no preference on the bedding material, said native soil, sand, or gravel are all fine, just can't have any large rocks. I am leaning towards the decomposed granite...

Looking at UPC 718.2, it states that "sewer piping shall be laid on a firm bed throughout its entire length, and such piping laid in made or filled-in ground shall be laid on a bed of approved materials and shall be properly supported as required by the authority having jurisdiction." All the...

I am running a new sewer line in my front yard. I've trenched 60' and now need to add some bedding material for the 4" pipe. Locally I can get sand, gravel, decomposed granite, pea gravel, and road base. Any reason to use one over the other? The existing soil is 4-5 inches of top soil...

Yes it is. Only the new p-traps are open to the air. Everything else is under concrete.

I am replacing the cast iron plumbing traps in the two bathrooms. I don't think there's enough room to add a test tee between the new p-trap and the existing cast iron I am tying into. Here's a shot of the new pvc tie in. In order to water test the new traps, I think I will have to plug the...

Jeff, that's an easy enough solution! Something like this? I have a second toilet, about 5 feet away, that is connected to this line. Should that be removed and plugged before the water test? It seems like the built in trap would be overpowered once the water in the lines starts to rise...

Hey y'all. I have a brass toilet flange set into a concrete slab that I need to seal off in order to water test my drain lines. I have a 4" gripper plug in there at the moment, but it looks like the lead(?) lining isn't going to seal to the plug tight enough. What can I do to make this setup...

Hey ya'll, I had a plumber out to look at the possibility of lining some cast iron pipes, and they remarked in passing that they did not think my bathroom venting setup would pass inspection due to the bathroom groups being wet vented. Do you see any issues with the current setup? I thought it...

I am a new member, and in my short time here, Terry has left a huge impression on my experience here. It is rare to find someone who so generously shares their knowledge, as freely as Terry did. I’ve read through hundreds of posts on this site, and he was always right there, willing to offer...

Turns out the running trap was connected to the wye and eighth bend combo that serves the sink. You can see the combo turning up in this image, immediately after the running trap. I was able to get it out, eventually. Here's the end of the combo hub, downstream of the running trap. I'm...

I was able to wrestle the cast iron pipe out to get a better look at what is happening at the slab. There's a 2" cast iron hub that transitions to an 1-1/2" I.D. pipe. Shouldn't a washing machine be served by a 2" drain line? I'll run a 36" long borescope down the line to see if I can locate...

That's a good question, Wayne. I guess my thinking was the cleanouts were primarily added to facilitate the water test. But I see how it makes sense for the 3" cast iron to have a 3" cleanout, and then adapt down to 2". Is what I'm showing a code violation, or fall more towards up to the...

Wayne, I appreciate all your insight and help so far! In the end, I was able to use the double fixture fitting, and avoid some of the complications of the alternative options. Here's a photo of the rough plumbing. Please let me know if you see anything that should be done differently, I am...

Thank you for the ongoing help! Is this sketch depicting what you're describing in the stacked sanitary tee option off the 2" cast iron pipe? And is this an acceptable way to incorporate a vent if sinks 1 and 2 are tied into the 3" cast iron line? (Sorry the elevation started running into...