Someday997
New Member
I am getting ready to finish my basement and I am planning on putting in a full bath. When the house was built the builder did install a sewage ejector, but did not install any under the slab pluming for the fixtures. The sewage ejector is plumed to the main discharge line and vented with a dedicated 2” vent line. The plumber did drop and cap a separate 2” vent for future finishing.
While I feel like I have a handle on the drain lines the venting and amount of venting necessary is confusing me a bit. My initial plan was to utilize the sink vent (2”) to wet vent the shower and toilet, but I am not sure if that would be sufficient venting for a full bathroom group. The vent would run behind the walls to the capped vent line which is about 25’-30’ away. I can plenty of slope on it running it behind the walls. With the main 3” line going directly into the grinder pit does the 2” grinder vent also count for the bathroom group.
I have attached two pictures of the potential layouts, I am leaning toward the first one as it makes it easier to run a second 2” vent. Running the lower “potential vent” would make it easier to keep the vent line vertical off the main line over to the wall to avoid running horizontal which I believe is a no go for inspection.
Any help, issues, or suggestions would be greatly appreciated. Thanks.
While I feel like I have a handle on the drain lines the venting and amount of venting necessary is confusing me a bit. My initial plan was to utilize the sink vent (2”) to wet vent the shower and toilet, but I am not sure if that would be sufficient venting for a full bathroom group. The vent would run behind the walls to the capped vent line which is about 25’-30’ away. I can plenty of slope on it running it behind the walls. With the main 3” line going directly into the grinder pit does the 2” grinder vent also count for the bathroom group.
I have attached two pictures of the potential layouts, I am leaning toward the first one as it makes it easier to run a second 2” vent. Running the lower “potential vent” would make it easier to keep the vent line vertical off the main line over to the wall to avoid running horizontal which I believe is a no go for inspection.
Any help, issues, or suggestions would be greatly appreciated. Thanks.