We recently purchased a home with an unfinished basement. There is plumbing for a bathroom, shown in the attached picture. The plumbing is odd, there are three 2" pipes and a 3" pipe. All 2" pipes vent through the same vent. We would like to install a shower or tub. It appears that the previous owners had the same plan as tub and an x are written on the wall (green arrow). However, the nearest 2" pipe is 39" from the wall. I cannot think of a way to have a tub or shower drain into that pipe without tearing up the concrete. Am I overlooking something? Also in the second picture why did they turn the drain along the wall?
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