Cutting a cast iron waste pipe
I am about to connect 4 inch waste from a new attic conversion to an
external cast iron one. Currently it rises to above roof level. Some
questions:-
As my angle grinder wont cut thro 4 inches should I cut twice ie make a sort
of inspection hole and hacksaw the back or is there an easier way. (for
direct connection at attic floor level)
Should I replace all to ground level or to existing 1st floor connections.
Will new plastic fit inside old cast iron joints.
Many thanks
Peter
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