The plumbing layout was completed today.
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The drain valves were installed and checked for alignment.
I miscalculated the clearance between the 18 and 9 gallon tank drains. The lack of clearance prevented a PVC tee from being used. I had to use a rubber tee, which gave me enough wiggle room to get the drains connected.
The 6 gallon tank drain is connected to the 18 gallon tank.
I put the old subfloor on the frame to help with shower drain alignment. Holes are cut in the old subfloor for the 18 gallon and 9 gallon tank vents, which permits the subfloor to sit flush on the frame.
The shower and bathroom sink drain locations are finalized.
The below floor plumbing layout is now complete. The next step is to take everything out the frame for final welding of the tank supports.
That's all for today.