Drain waste vent run new bathroom question

[jzcop193]

Hey everyone, i am adding a three fixture bathroom and have come up with this riser diagram, will this work or is there a better way to do it. attached are plan of bathroom layout and riser diagram.

Thanks

 

[Cacher_Chick]

Layed out as it is in your diagram, the shower will need a vent prior to the connection to the main line.

You will be more likely to get input here if you draw up an isometric diagram, as it makes it easier for us to understand your intentions.

 

[Sponsor]

 

[jzcop193]

Layed out as it is in your diagram, the shower will need a vent prior to the connection to the main line.

You will be more likely to get input here if you draw up an isometric diagram, as it makes it easier for us to understand your intentions.

Is there a reason i cant's use the 2" vent for both the shower and Toilet?

 

[Cacher_Chick]

Is there a reason i cant's use the 2" vent for both the shower and Toilet?

The vent needs to come off the trap arm of the fixture. The way you have drawn it, flushing the toilet can siphon the shower's trap.

 

[jzcop193]

The vent needs to come off the trap arm of the fixture. The way you have drawn it, flushing the toilet can siphon the shower's trap.

what if i put the 2 inch vent in between the shower and toilet?

 

[Terry]

what if i put the 2 inch vent in between the shower and toilet?

The shower gets vented "before" it hits the main line with the toilet.