PVC clean out plug stuck in 4" Cast iron pipe fitting

[Riickk]

4" cast iron sewer pipes, basement clean out has a PVC plug that won't turn.
Exposed threads on the plug are dark, maybe sealant, or, maybe old sewage?
I warmed up the cast iron, but that didn't free up the plug.
Next step: HEAT the cast iron? or just cut the PVC plug out with my Sawzall?

Sewer line is clogged, but water level is now below the cleanout.
Once the clean out is open, will try water bladder to free up the lateral.
I'm trying to DIY this since last estimate to snake the line was $850
and using water jet added $500. Are those prices crazy high,
or, is it me who's out of touch?

 

[Twowaxhack]

Cut it out

 

[breplum]

cut and melt, whatever it takes.
Snaking with ez access ought to be in $300 range. Water bladder won't do much on anything but a soft clog.

 

[Riickk]

cut and melt, whatever it takes.
Snaking with ez access ought to be in $300 range. Water bladder won't do much on anything but a soft clog.

That's the figure I thought was about right. The clog has to be soft stuff, since I'm the only one here, and I know there are no sanitary napkins, wet wipes, plastic bottles, etc. in the pipe.

 

[Geofd]

IF,........ your handy you could rent a snake and clear it but if you have ANY doubts call a reputable drain cleaning co