changing ci 4" service weight soil pipe to pvc ?'s

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changing ci 4" service weight soil pipe to pvc ?'s

Author: cvcman (NY)

ok my soil pipe im told is 4" service weight...I want to change the section that comes from the toilet traight down about 3ft then has a ci Y hub then goes about 2ft thru the block wall...right on the basement side of the wall is a hub that the ci is leaded into..

so if I drill the lead and pull it and the packing out SHOULD the pipe slide right out ?? If so what is the best method for adapting the new pve to the hub ?

Also would 4" pvc be best or 3" ??

Thx

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Re: changing ci 4" service weight soil pipe to pvc ?'s
Author: hj (AZ) Why do you want to change it, and why would you want to change 4" to 3"?
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Re: changing ci 4" service weight soil pipe to pvc ?'s
Author: cvcman (NY) I dont WANT to chg it..it has a drip forming on the horizontal pc...but that pc is part of the Y hub so I have no way to cut and fernco ....also I wouldnt chg from 4 to 3 unless you guys thought it would be "better"????would 4" pvc go into 4" ci hub ?
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Re: changing ci 4" service weight soil pipe to pvc ?'s
Author: Paul48 (CT) Use a piece of rubber, some silicone and a hose clamp.
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Re: changing ci 4" service weight soil pipe to pvc ?'s
Author: cvcman (NY) yea its kinda in an odd spot because the Y hub is so short there really isnt any room..my buddy said clean it down and fiberglass cloth it with resin...
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Re: changing ci 4" service weight soil pipe to pvc ?'s
Author: cvcman (NY) its hard to see but here is the pic [i147.photobucket.com]
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Re: changing ci 4" service weight soil pipe to pvc ?'s
Author: Paul48 (CT) "As seen on TV"...Flex Seal?
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Re: changing ci 4" service weight soil pipe to pvc ?'s
Author: cvcman (NY) I like the fiberglass idea...but I would rather do it right then to cobb it...just not sure how easy the Y will come out of the hub after I remove the lead and oakum...also do I just use a fernco press in hub ?
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Re: changing ci 4" service weight soil pipe to pvc ?'s
Author: m & m (MD) The Y will fall outfon the hub when ALL the lead and oakum are removed. To join PVC into the hub, use a no caulk hub gasket.
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Re: changing ci 4" service weight soil pipe to pvc ?'s
Author: cvcman (NY) so just drill and pull out the lead and oakum....then put the seal in the hub...no silicone or anything around it ? I assume my hub is marked SV - 4 so a std 4" to 4" pvc gasket ? Thx
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Re: changing ci 4" service weight soil pipe to pvc ?'s

Author: sum (FL)

I am not a plumber but if it were my pipes I wouldn't change it out.

I would first want to determine why there is a leak and if its a hole or an enlarging crack. If its a hole I would plug it and wrap with fiberglass cloth, resin brushed on...if its a crack the corrosion will spread and get bigger and I'll replace.

I had to do this in my house once and I cut off the 3" CI at about 48" off the floor to replace everything below with PVC, silly me I thought the upper section was secured and after I removed the bottom portion, the top slipped out of the roof lead lining and came crashing down. Lucky me I was out of its way.

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