Old Cast Iron Sewer Pipes (by Bill [NC]) Oct 22, 2020 1:03 PM
Old Cast Iron Sewer Pipes (by RB [MI]) Oct 22, 2020 1:14 PM
Old Cast Iron Sewer Pipes (by Ken [NY]) Oct 22, 2020 1:24 PM
Old Cast Iron Sewer Pipes (by Nellie [ME]) Oct 22, 2020 1:29 PM
Old Cast Iron Sewer Pipes (by DJ [VA]) Oct 22, 2020 1:34 PM
Old Cast Iron Sewer Pipes (by MikeA [TX]) Oct 22, 2020 2:02 PM
Old Cast Iron Sewer Pipes (by myob [GA]) Oct 22, 2020 2:16 PM
Old Cast Iron Sewer Pipes (by Bill [NC]) Oct 22, 2020 3:03 PM
Old Cast Iron Sewer Pipes (by Ray-N-Pa [PA]) Oct 22, 2020 3:43 PM
Old Cast Iron Sewer Pipes (by del [MD]) Oct 22, 2020 4:28 PM
Old Cast Iron Sewer Pipes (by JAC [OH]) Oct 22, 2020 7:21 PM
Old Cast Iron Sewer Pipes (by Hoosier [IN]) Oct 23, 2020 8:47 AM
Old Cast Iron Sewer Pipes (by Dodge [PA]) Oct 23, 2020 11:21 AM
Old Cast Iron Sewer Pipes (by don [PA]) Oct 23, 2020 2:42 PM
Old Cast Iron Sewer Pipes (by Bill [NC]) Posted on: Oct 22, 2020 1:03 PM Message:
I am in the process of replacing my floors in both bathrooms and both have old cast iron sewer pipes. (old house, built in the 50's followng Hurricane Hazel in 1954.) The flange in one bathroom is broken on one edge, haven't looked at the other one yet.
Anyone have any ideas on replacing the old cast iron sewer pipes, they seem to be "rotten." Want to keep house liveable as long as I live at least. I am 73 and in pretty good health. One of the few homes in eastern NC with no drywall inside. Plywood or wood paneling.
I will get through this without scars.
--75.138.xxx.xxx |
Old Cast Iron Sewer Pipes (by RB [MI]) Posted on: Oct 22, 2020 1:14 PM Message:
Old Cast Iron Sewer Pipes (by Ken [NY]) Posted on: Oct 22, 2020 1:24 PM Message:
PVC definately easy to do --72.231.xxx.xxx |
Old Cast Iron Sewer Pipes (by Nellie [ME]) Posted on: Oct 22, 2020 1:29 PM Message:
PVC can be attached to cast iron using a rubber gasket/sleeve and clamps. We just replaced an 8’ section in one of my buildings. --64.222.xxx.xxx |
Old Cast Iron Sewer Pipes (by DJ [VA]) Posted on: Oct 22, 2020 1:34 PM Message:
I agree to ditch the cast iron (just let it fall into the crawl space - too heavy to haul out) and replace with PVC.
Bonus: the smooth interior will even allow some prohibited item to pass, that would have been caught on the rough iron = less plumbing clean-out calls. --70.160.xxx.xxx |
Old Cast Iron Sewer Pipes (by MikeA [TX]) Posted on: Oct 22, 2020 2:02 PM Message:
Cast iron is pretty amazing stuff for sewer pipes. I have a couple of houses nearing 120 years old that the pipe is still solid. If it's just the edge of the iron toilet flange, a plumber can replace the flange for little cost with Iron or PVC. If the pipe itself is flaked through or close to it then I'd replace at least that run with PVC. The simplest way to determine is to tap the pipe along the run with a light hammer to see if it' solid and check the thickness from below the flange. Surface rust is pretty normal so don't let that be the persuading factor, you are more looking for large flakes an pitting on inside or outside that will cause integrity issues in the next few years.
The problem with replacing is where do you stop. You could easily find yourself replacing the whole house and then the sewer line to the street. That would be a big expense. --64.130.xx.xxx |
Old Cast Iron Sewer Pipes (by myob [GA]) Posted on: Oct 22, 2020 2:16 PM Message:
Your 73? how much longer you gonna own these rental dogs? (said with affection)
They make flanges of many styles. Before I replaced sewer lines I'd check out rehab adapters. I say this cause once you start lugging those pipes-- yes even at JUST 70 they wear on you. I've always repaired cast in the structure itself. When YARD lines start to go-- I lay new over the old with PVC-- only because the pipe is getting attacked on BOTH side. Dirt on one side and filth inside.
is this on crawl space-- or basement?
H-depot makes a 2 piece flange that can be slipped under any existing piece of flange. They also have a floor flange that is ribbed and slides inside the cast and has rubber serrations. --99.103.xxx.xxx |
Old Cast Iron Sewer Pipes (by Bill [NC]) Posted on: Oct 22, 2020 3:03 PM Message:
To: MYOB (GA)
This is my personal residence. Inherited from my parents 25+ years ago. Got plumber coming tomorrow to see what we can do.
Living close to the ocean on Topsail Island, NC everything rusts or corrodes. Just part of life here.
Everything will work out in the end. --75.138.xxx.xxx |
Old Cast Iron Sewer Pipes (by Ray-N-Pa [PA]) Posted on: Oct 22, 2020 3:43 PM Message:
You might want to have the plumber camera it to see how much festering has occurred. You might be lucky and the pipe didn't rot from the inside out. If the flange is at the toilet seat on that flange, they do have steel and plastic screw in inserts.
But based on what you have described, I think you should consider just replacing it --24.101.xxx.xx |
Old Cast Iron Sewer Pipes (by del [MD]) Posted on: Oct 22, 2020 4:28 PM Message:
I have used an angle grinder to cutout old iron sewer pipe. Be careful of cutting into a leaded joint. That would spread lead dust everywhere. A good, well fitted respirator is a must. --157.204.xxx.xxx |
Old Cast Iron Sewer Pipes (by JAC [OH]) Posted on: Oct 22, 2020 7:21 PM Message:
The hardest part is cutting out the existing pipe. I have cut out probably 700lb of cast iron in a 4 family using a cast iron chain cutter. Take your time, support with small ropes, cut from the top down. Cut as far down as you can reach then put a rubber coupler to your new PVC. Don't forget to add cleanouts in strategic places. --50.5.xxx.xx |
Old Cast Iron Sewer Pipes (by Hoosier [IN]) Posted on: Oct 23, 2020 8:47 AM Message:
I would replace with PVC at least to a convenient point in the system where it can be serviced easily the next time something goes wrong. As a home inspector I would occasionally see cast iron pipes with holes...usually in the top as corrosive gases would eat through it. But the stuff is pretty durable.
I like to remove all old "stuff" when doing a job...just makes for a cleaner work environment next time. As far as the weight of "carrying it out" of the crawlspace, you have a few options.
1) Drape a damp rag over a small section and hit it hard with a sledge hammer (wear safety glasses)...you can bust it up that way and carry out smaller pieces, although it is a lot of work because it won't break with one hit.
2) You can rent a cutter that will "snap" cast iron pipe, so you can get it to maybe 2' or 3' sections that are easier to carry out.
When installing new PVC, be sure to use primer before gluing...can't tell you how many joints I've simply pulled apart with my hands due to someone not taking all the steps...for example not using primer, allowing the pipe to be dirty or oily before assembly, and doing the work in freezing weather when the adhesive won't set correctly. --99.92.xxx.xxx |
Old Cast Iron Sewer Pipes (by Dodge [PA]) Posted on: Oct 23, 2020 11:21 AM Message:
I hate cast iron. I've had them fail in the walls for no reason. It slowly leaks inside the wall and nobody realizes the issue until plaster walls need replaced. --174.198.xxx.xxx |
Old Cast Iron Sewer Pipes (by don [PA]) Posted on: Oct 23, 2020 2:42 PM Message:
If you go with pvc, DO NOT use a pvc toilet flange without metal reinforcement. When you go to tighten down the toilet bolts, the pvc snaps. --70.90.xx.xxx |
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