New engine room with cummins 6BTA wet exhaust question

[Jamison merriam]

Hello, I am new here so please bare with me. I have recently fit out my steel pontoon barge with twin Cummins 6BTA’s which are below the water line. I actually purchased a MK2 military boat, gutted it and reused the parts to install into my floating bar and restaurant on lake Winnipesaukee NH. I am a welder and fabricator, so this project was right up my alley. I need assistance with fabricating an wet exhaust system with the do’s and do not’s.

I have a wet elbow that I wanted to either turn up, then out through the bulkhead above the water line and then down into the water or down and out about 3 feet below the water line coming out the stern. Please see my pictures and drawing. I hope I explained this properly.

The first picture is my port side installed, the second is the starboard being installed and the third is my attempt to draw the view from the stern view, and what I am hoping to achieve. Thanks is advance 

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[Tony Athens]

Simple answer for now before you do something BEYOUND STUPID and is 100% “Doomed to Failure”.

Study the redraw of your “A” version

Read thru this link:  https://www.sbmar.com/featured-article/everything-you-need-to-know-about-marine-exhaust-systems/    and the ones in the same main article.

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