Originally posted by Sylvan:
Jak, when installing new roof drains I do encounter 5″ an even 6″ lead piping.
You have some options.
1- Remove the lead pipe up to the existing brass ferrule and wipe the ferrule clean of all solder using a torch being very careful then install a No hub reducing coupling to ANY SIZE you little heart desires including 3″ for a toilet waste
2- Take up the old floor flange and get 3″ or 4″ lead “D” pipe and insert it into the existing lead pipe and make a “Cup Joint” using Warranted Flemco # 1 Solder then solder on the new brass floor flange either in 3″ or 4″
3- Get to the cast Iron and cut it just below the hub and either use No hub cast Iron with a Quick set cast Iron floor flange Or
4- Use a Cast Iron caulked floor flange like I do on 4″ galvanized drainage piping when flange replacement becomes necessary.
If you have any questions please feel free to E mail me.. Sylvan REAL LMP not in name only
Thank you Sylvan for the useful information. I’ll let you know how it goes.