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Old 11-19-2019, 02:28 PM   #1
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Default Cast Transition

I'm getting more and more old pipes that I have to bring up to code. The problem is 2" cast iron coming from the concrete floor and reduces to 1 1/2". With the new washing machine the size is usually not enough, that and the soap zone.

I need to find a way to attach a 2" ABS to the cast without breaking concrete and transition on virgin pipe. My idea right now would be to drill with a hole saw trough the poured lead, insert a 2" copper pipe and solder it. Then I can transition to ABS?

Any other ideas?


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Old 11-19-2019, 02:31 PM   #2
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Can you remove abs.. and just cold caulk abs into hub with pc4 and oakum
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Old 11-19-2019, 02:36 PM   #3
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You can also buy hub ferncos to fit over the hub and go 2" from there... file down ridges on cast clean up with grit cloth... and put silicone on the old cast and stretch fernco over it
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Old 11-19-2019, 04:48 PM   #4
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Originally Posted by Venomthirst View Post
Can you remove abs.. and just cold caulk abs into hub with pc4 and oakum
In the picture it's 1 1/2" and I need to put a 2".

I haven't removed one yet but I know it'll be too small. Maybe I can dig out all the lead with a chisel and use pc4, if I can find any that is!

A fernco over the hub, I'll waste my time trying to find one, then try to grind it smooth and worst of all I can't guarantee it. If I can't guarantee it that could spell a formal complaint and be stuck giving them a new pipe under the concrete floor plus a hefty fine. It has to be leak proof the very first time.
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Old 11-19-2019, 06:11 PM   #5
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Charlotte seal. Goes inside the hub and the PVC goes into the seal.


https://www.google.com/url?sa=t&rct=...y0KJIfSzQ3eVHO
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Old 11-19-2019, 06:12 PM   #6
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In Illinois we are allowed to remove the lead (cut, heat, bang out) pop a multi-tight in the cast hub and push a "raised bead adapter" like you use with no-hub couplings into the multi-tight.

Of course we know it works well with just the ABS, but we are mandated to use a transitional fitting unless we are dealing with cast iron.
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Old 11-19-2019, 06:16 PM   #7
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Quote:
Originally Posted by hroark2112 View Post
Charlotte seal. Goes inside the hub and the PVC goes into the seal.


https://www.google.com/url?sa=t&rct=...y0KJIfSzQ3eVHO
I'll check the suppliers if they can get some. Usually rare items like these you have to buy a couple hundred of them.

Edit : looks like fernco makes them too, I'll be checking them out tomorrow if not I'll order on Amazon USA. Finally they allow us to buy from there!! For 10 years or so we weren't allowed.

Last edited by Tango; 11-19-2019 at 06:34 PM..
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Old 11-19-2019, 07:11 PM   #8
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Quote:
Originally Posted by Tango View Post
Quote:
Originally Posted by Venomthirst View Post
Can you remove abs.. and just cold caulk abs into hub with pc4 and oakum
In the picture it's 1 1/2" and I need to put a 2".

I haven't removed one yet but I know it'll be too small. Maybe I can dig out all the lead with a chisel and use pc4, if I can find any that is!

A fernco over the hub, I'll waste my time trying to find one, then try to grind it smooth and worst of all I can't guarantee it. If I can't guarantee it that could spell a formal complaint and be stuck giving them a new pipe under the concrete floor plus a hefty fine. It has to be leak proof the very first time.
Yea itll come out hack saw blade or sawzall cut the lead and it'll come out easy peezy... cold caulk. Hydraulic cement even would seal it up saved me a number of times...

To do it best oakum then pc4..
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Old 11-19-2019, 07:27 PM   #9
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I have had good luck once or twice with a fernco. Just pull out the ABS pipe and the lead comes out fairly easy too. I'm not sure what seize you would need but I am thinking a 4"X2" or maybe a 4"X3" with a bushing in it. No need to file down the cast or anything like that. Just get the fernco over the cast hub and it will tighten down to fit. You might want an extra hose clamp for extra safety but I have made it work like that and felt confident in that repair before. I guess the only thing would be that a fernco technically is not allowed above ground and only underground.

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Old 11-19-2019, 07:58 PM   #10
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Take the old joint out and use lead wool and oakum.












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