I am beyond happy that I took the advice to slice the galvanized pipe a few inches above the cast iron. That sucker was about 75% restricted with gunk. Not like rusty chewed galvanized... just gunk. I dug out what I could with a screwdriver and in those 5 inches of pipe I filled a glass Tostito's salsa jar. Disgusting.
It took me a decent chunk of time today, but I'm super glad I did it myself. I did the plumbing in a way I feel is very logical, clean, and routed properly. I'm no plumber, but I tried the best I could do organize things appropriately. It's a little difficult because in this particular area you have a lot of traffic. You have the tub and sink from the main floor but you also have the shower and sink from the 2nd floor. Couple that with the sump pump, kitchen sink, etc., and suddenly you have wye city.
There's the finished product. The main pipe is 2 inches with the 3 branches being 1.5 inch. I had aimed to have 2 branches, with everything in one branch, and the sump pump in another. Problem is I had a very very short area to fit two wye's, and it just didn't work... so I just made another channel and wye'd off that. The only thing I need to do is to put in some more decent supports. When I took this picture I only had one or two in, but now I have some makeshift wire ties in place... however I'll get some better supported hooks tomorrow.
On the right you can barely see a wye going up just on the other side of the funky S turn... that goes to the upstairs shower, which is connected to existing galvanized via a 2" rubber coupler. The combination sweep T at the top of the picture goes to the upstairs bathroom sink, which is just adapted over to the existing galvanized with a threaded PVC joint. With the middle pipe you have another combination sweep T which goes to the main floor bath tub off to the left. Originally I was going to do a 90 here since I had no reason for more connections but I ended up putting another combination sweep T so I could put a plug on the end there. That way if I ever have to run a snake for future clogs I can access it there. Then the long pipe on the left goes straight to the sump pump with nothing else attached.
I have to say, those combination sweep T's... they're absolutely awesome. If you folks take a good look at the combination sweep T at the top of the picture that threads into the galvanized... I tried to put a wye there originally. The problem is, a wye is still angled. Due to the angle, I couldn't get it fitted properly because of how short of a distance I was working with. There was just no way to make it happen. My only option was going to be a T, which you guys said wasn't the smartest thing the original plumber could have done, however now that I was in his shoes having to rebuild this, I knew exactly why he did that. The pipe is dead set against the wooden joist for the floor upstairs, so there's no room to come down on an angle to connect up to a wye. When I hit this point I remembered I had utilized a combination sweep T for another project, but I forgot where I found them at. I went to several hardware stores (big box and local mom/pop) and finally found it at Lowe's, which was my last stop (go figure). They're a very directional based T while still providing a 90 degree joint. I had to take a saw and notch out a thumb-sized dent into the wooden joist to make a bit more room for it, but it worked out so perfectly when it was all said and done. I bought the last two on the shelf... one to use, and one for a spare, but I ended up using both in this job, so :thumbsup:
Anyway... it's a little busy, but it's super clean, no weeping, no leaks of any sort, it's on a slight slope as per recommendation, and most importantly the sump pump runs perfectly. I still can't believe what I found in that galvanized pipe at the exit, but dang I'm glad I took a sawzall to that pipe and took a quick look... Overall, this is another completed DIY job.
Thanks everybody who offered their time to help. It's appreciated like no other! The wife gave me a :thumbsup: to my comment when I showed her the new plumbing work: "Who needs a plumber when you have a husband?"