Detached Garage Bathroom slab on grade

Hey guys,
I am building a garage separate from my house,I am including a bathroom,and am giving it it's own septic system.

Garage will have 3 fixtures,toilet,lav,and shower.Slab on grade construction.The toilet will be very close to where the sewer line enters the building,the shower and lav are to be on an opposite wall,7 feet away,also an exterior wall.

My question is,what is the most simple way to vent and provide cleanouts?Although it is slab on grade it will have an 8" high,8" wide concrete "foundation wall" above the slab,and I would like to plan not only the DWV layout,but also any pipes that need to be embedded within this short foundation wall.

quote; My question is,what is the most simple way to vent and provide cleanouts

Why don't you just ask what is the meaning of life? EVERY installation will have many possibilities, depending on the locations, the direction of the sewer, and the wall locations. Any plumber can visit the site and make the determination, but if you call 3 plumbers, you will get 3 different answers.

Juan for the road said:

Hey guys,
I am building a garage separate from my house, I am including a bathroom,and am giving it it's own septic system.

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Before you start you must have the right permits because septic fields can be dangerous for you and others. If you or your neighbors have wells for potable water that is a concern, the ground must pass a percolator test and the field is also restricted to a location on your lot. Some areas no longer allow septic fields if there is a septic sewer system on your street. I hope your doing all of this right because if you go ahead and a local inspector happens to see it you will be shut down. You can have a lot of money into it by then. In the future if you sell the home and a house inspector catches this, it's a red flag unless all of the permits were in place. I've addressed this because by your question it sounds like a DIY project.