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Can anyone advise the best way to break a joint in a cast iron stack without breaking the pipe to replace above it with plastic so that a second toilet can be installed? 
SOIL STACK CAST IRON TO PLASTIC
- Thread starter parrissouth
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Have done it a couple of times no trouble, though there was a long length to wiggle in each case. It's not like the lead wets the iron as though it were soldered.
The ones in the workshop back at college were on short stubs of pipe, they had to be melted apart.
If yours won't wiggle parrissouth you'll have to cut it as short as you can, use a recip saw or baby angle grinder to get slotsin the pipe then chip it out with a chisel
You might end up changing rather more than you wanted to!
The ones in the workshop back at college were on short stubs of pipe, they had to be melted apart.
If yours won't wiggle parrissouth you'll have to cut it as short as you can, use a recip saw or baby angle grinder to get slotsin the pipe then chip it out with a chisel
You might end up changing rather more than you wanted to!
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