toilet drain line sizes
Posted by Richard Reeves on December 27, 2002 at 21:42:21:
I am installing a new toilet into an existing 4" main line and am finding no information about wether a 3" or 4" drain from toilet to main is preferable. Pipes are in basement so there is plenty of room, extra cost of fittings is minimal, is there some inherent reason that one size would be better than the other? My instinct tells me go bigger, is this correct? Thanks for the help.


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