Sub base/temp drive material

[Russdl]

@Ferdinand I'm going to build a little thunder box down by the drain in the bottom south west corner of the plot and plumb straight into that manhole cover (on the excellent advise of @Russell griffiths in a previous thread). The welfare unit will be at the north of the plot and I don't plan on connecting it to the drains.

 

My thought is if I did the drains first then they would likely get damaged. I don't want to be up to the finished drive level during the construction phase and so I would end up with at least 1 IC protruding from the drive sub base.