Laying Out Overhead DWV

Hey guys,

I'll try to be short and simple. I'm hoping to go from non-union to Union soon. I'm currently in my 5th year doing commercial plumbing with a small company.

All of our jobs are on a much smaller scale compared to Union. All over head work is done as we go. Nothing is laid out, etc.

Ive always tried to be as efficient as possible, but my current company doesn't have jobs big enough for me to practice different ways of doing overhead piping.

I've read here, some guys lay out everything, then set shots hang and install.

Some use string lines, or lasers etc.

Any help with how this is done would be greatly appreciated.

Thanks

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