Cast Iron - Page 11 - Plumbing Zone

Protech · 11-04-2009, 11:54 AM

When you say "it does not hold up" what exactly are you talking about. ALL of the restaurants around here are done in PVC and I haven't seen any problems. I'm just wondering what you are seeing that I'm not.

Quote:

Originally Posted by 70bbc

big time weight diff from charlotte to china just snap a piece the china pipe splinters and when you look at it from the end the pipe thickness is not uniform junk. nh by far is better than pvc do a hospital or commercial kitchen pvc does not hold up under high temps ...

stillaround · 11-04-2009, 02:48 PM

[quote=ROTOR KING;75017]

Quote:

Originally Posted by stillaround

Finally, a real plumber ...schooled, experienced and ready to straighten out this huge mess.[/quote NO disrespect,but being competitive,and in the business,you have to have a opened eye.If the product is better and installed quicker why not use it.Cast Iron ain,t as durable as it was 60 years ago.Every product has its advantages and disadvantages,use whats best to help your business.

I should have used an emoticon...100% sarcasm...cant believe you missed that.

user2091 · 11-04-2009, 03:41 PM

Quote:

Originally Posted by Reinhard

it is heavy and sucks, I would love it to be gone

i love cast iron, works great when installed right. looks great when done right. try doing 8" and above!! i was doing 10" and 12" on a lift last month looks incredible!

i say keep it! nice and quiet. tested about 200' with air at 12 psi not a single leak! Hospital rain leaders. oh and don't forget the overflow! damn that shit is heavy!

user2091 · 11-04-2009, 03:53 PM

all jobs that are bid come with submitals, drawings, schedules, charts, reports in accordance with approved specifications & standards. materials used being one. lots of city's and counties are different and have different requirements when it comes to this. ahj has the last say on what materials we use!

LIVBMI · 11-04-2009, 05:52 PM

We are a commerical contractor and use cast iron most of the time, mainly because of the fire code (Louisiana). The older cast iron is much better than the new stuff. We have been having problems with no hub cast iron on hi rise buildings split open (15-20 years old). This mainly happens on the vent lines from 8" to 2". Any way i like cast iron.

user2091 · 11-04-2009, 05:58 PM

Quote:

Originally Posted by slickrick

Material is material, The picture is painted by the artist. There are different materials and systems all around the world and they work just fine. I was very opinionated that the UPC was the only code. Until I became a plumbing inspector and delt with other code bodies. I found out they are just peoples opinions that form codes. All we can do as plumbers is to install and maintain our work like the craftspersons (do you like that word?) we are....I will be running for office and would appreciate your vote....

nicely put. You got my vote. I still think there is only one code UPC.

U.A Craftsmanship

Plumbus · 11-07-2009, 08:38 AM

You want to know why modern CI doesn't last as long as the old stuff? It's not wall thickness, or uniformity. It's the EPA. Their restrictions on pollutants have required pipe manufacturers to reformulate the coatings they place on the pipe. The stuff they spray on the pipe these days doesn't hold up as well as what used to be applied. How do I know this? I asked. When I was a boy in the early '60's, I remember seeing slings of pipe sitting out in the weather. It was always completely black, whether it was service weight or nh. Now, if you leave nh out in the weather, it will show rust spots almost immediately. I've even noticed rust on the inside of pipe scraps that have been kicked around a job site, waiting to be thrown into the recycle bin. Fittings rust as well. They didn't used to.

Protech · 11-09-2009, 10:05 AM

I've had over 8 calls in the past 30 days on CI pipe that has rotted out. Most of those homes were built in the 60s and 70s. I just got a call a few minutes ago that I'm going out on in an hour about a home built in 1962 that has rotted CI lines in it. She’s been having problems for almost a decade.

Tieger plumbing · 11-14-2009, 10:41 AM

I strictly use cast iron hub cast iron / or XH when the accounts are willing to pay the difference.

The reasoning I use cast iron is

1- No toxic
2- easy to recycle
3- Quiet
4- I use long sweeps on drainage thus much easier to snake waster jet then a PVC ell
5- Can support heavier loads (under ground)and requires must less clevis hangers
6- every joint is a possible clean out
7- NHCI can be installed even with waste still flowing and under water
8- Looks a lot more professional, then coming to a job with a hack saw and can of glue and primmer that anyone can put together with 2 minutes of training
9- Does not support combustion
10- Can be installed in direct sun light

I still use cast iron roof drains on 100% of my jobs, inside caulk by choice conections not because the code wont allow it I also use 4 PSF sheet lead for these drain installations as well as shower pans.

In 41 years of plumbing I refuse to put in a plastic roof drain /floor flange /floor drain

Plastic has its uses such as chemical waste and lawn furnature

Actually If one wants the best of both weorlds use the plastic for venting (not through the roof) and use CI for drainage

GREENPLUM · 11-14-2009, 11:00 AM

Quote:

Originally Posted by Tieger plumbing

I strictly use cast iron hub cast iron / or XH when the accounts are willing to pay the difference.

The reasoning I use cast iron is

1- No toxic
2- easy to recycle
3- Quiet
4- I use long sweeps on drainage thus much easier to snake waster jet then a PVC ell
5- Can support heavier loads (under ground)and requires must less clevis hangers
6- every joint is a possible clean out
7- NHCI can be installed even with waste still flowing and under water
8- Looks a lot more professional, then coming to a job with a hack saw and can of glue and primmer that anyone can put together with 2 minutes of training
9- Does not support combustion
10- Can be installed in direct sun light

BS,

11-09-2009, 10:05 AM	#108
Protech Super pex man Join Date: Sep 2008 Location: Polk County, Florida Posts: 4,014 My Photos	I've had over 8 calls in the past 30 days on CI pipe that has rotted out. Most of those homes were built in the 60s and 70s. I just got a call a few minutes ago that I'm going out on in an hour about a home built in 1962 that has rotted CI lines in it. She’s been having problems for almost a decade. __________________ Plumber, Repiping, Replumbing, Leak Detection, Solar Water Heater, Drain Cleaner, Pipe Leak, Polk County Plumber, Lakeland Plumber, Winter Haven Plumber, Haines City Plumber, Bartow Plumber

11-14-2009, 10:41 AM	#109
Tieger plumbing Registered Member Join Date: Nov 2009 Posts: 36 My Photos	I strictly use cast iron hub cast iron / or XH when the accounts are willing to pay the difference. The reasoning I use cast iron is 1- No toxic 2- easy to recycle 3- Quiet 4- I use long sweeps on drainage thus much easier to snake waster jet then a PVC ell 5- Can support heavier loads (under ground)and requires must less clevis hangers 6- every joint is a possible clean out 7- NHCI can be installed even with waste still flowing and under water 8- Looks a lot more professional, then coming to a job with a hack saw and can of glue and primmer that anyone can put together with 2 minutes of training 9- Does not support combustion 10- Can be installed in direct sun light I still use cast iron roof drains on 100% of my jobs, inside caulk by choice conections not because the code wont allow it I also use 4 PSF sheet lead for these drain installations as well as shower pans. In 41 years of plumbing I refuse to put in a plastic roof drain /floor flange /floor drain Plastic has its uses such as chemical waste and lawn furnature Actually If one wants the best of both weorlds use the plastic for venting (not through the roof) and use CI for drainage Last edited by Tieger plumbing; 11-14-2009 at 10:44 AM. Reason: typo

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11-04-2009, 03:53 PM	#104
user2091 plumber Join Date: Sep 2009 Posts: 385 My Photos	all jobs that are bid come with submitals, drawings, schedules, charts, reports in accordance with approved specifications & standards. materials used being one. lots of city's and counties are different and have different requirements when it comes to this. ahj has the last say on what materials we use!

11-04-2009, 05:52 PM	#105
LIVBMI Louisiana Master Plumber Join Date: Sep 2008 Location: Destrehan Louisiana Posts: 16 My Photos	We are a commerical contractor and use cast iron most of the time, mainly because of the fire code (Louisiana). The older cast iron is much better than the new stuff. We have been having problems with no hub cast iron on hi rise buildings split open (15-20 years old). This mainly happens on the vent lines from 8" to 2". Any way i like cast iron.

11-07-2009, 08:38 AM	#107
Plumbus Senior Member Join Date: Aug 2008 Location: San Francisco Peninsula Posts: 190 My Photos	You want to know why modern CI doesn't last as long as the old stuff? It's not wall thickness, or uniformity. It's the EPA. Their restrictions on pollutants have required pipe manufacturers to reformulate the coatings they place on the pipe. The stuff they spray on the pipe these days doesn't hold up as well as what used to be applied. How do I know this? I asked. When I was a boy in the early '60's, I remember seeing slings of pipe sitting out in the weather. It was always completely black, whether it was service weight or nh. Now, if you leave nh out in the weather, it will show rust spots almost immediately. I've even noticed rust on the inside of pipe scraps that have been kicked around a job site, waiting to be thrown into the recycle bin. Fittings rust as well. They didn't used to.