Chris Mashburn
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I am researching using a Saniflo macerator unit in a second floor bathroom addition. My house is on a slab foundation so there is no easy way to access a large drain line. I have a 2 inch Vent pipe which runs vertical through the outside wall of my first floor kitchen and then thru the attic and out the roof. The vent pipe has a cleanout plug on the outside of the house so I removed the plug and flowed water into the hole and confirmed it will drain. Since the discharge on the macerator is 3/4 inch could I discharge into the 2 inch vent pipe in the attic?