Vinniejt76
New Member
My original plan was to run a 3in Tee up for my toilet drain, so the 3inch could continue out the back of the 90 and up the wall behind for the vent..BUT... to keep the proper fall from the drain I only have about 3inches which forces the top of that tee at the floor level where my flange goes. There for I would have to use an inside closte flange. Since i would like to use the bigger outside flange I considered the 3 to 4inch 90...which allows the 4inch opening at the floor for the bigger flange, but they dont have a tee which allows the 3inch vent to continue out the back. Now to my question....would be okay to run the vent from a wye off the line IN FRONT of the 90 for my flange?