My friend, you are in trouble.
I guess have a wet basement and wanted to keep it dry by diverting water to the subdrainage enclosed by the drain tile. Then you encased the drain tile in concrete in order to prevent the groundwater from getting into the drain tile and backflow into the basement. This scenario has several problems:
The concrete can crack, so ...
If it is at all possible, you make sure you can see the other side before you drill. In some areas fishing wires into an unopened space is considered concealed work and must be done by a master electrician.
That said, a few tricks I've seen used:
There are many types of electrical toner. I don't know the name of the one you want for this, we just called it ...
For connecting tread to stringer, a piece of flat bar welded on to make a bracket (instead of angle).
For risers (if needed) the the top end of the riser is typically held in a groove in the underside of the tread, and bottom end attached to the back of the other tread,
Stringers are often C-section beams (not flat bar).
Water based adhesives have the following disadvantages:
Slower drying than solvent based adhesives
Susceptible to freezing at low temperatures.
Lower water resistance than solvent-based products.
On the other hand, disadvantages of solvent based adhesives:
Cost – solvent based adhesives are more expensive than water-based adhesives.
Cleaning: Residues ...
I use water-based (project or panel) adhesive on foam board or any plastic which the solvent will dissolve, or where cleanup of spills is a concern. Solvent-based (heavy duty) for almost everything else. It dries faster and holds better.
This wall is illegal for two reasons: 1) exceeds maximum height allowed by code, and 2) too narrow for minimum insulation required by code.
The maximum height allowed by code is 10’ without lateral bracing or without structural analysis that accompany the drawings. (See ICC Table R602.3(5) )
The Energy Code requires a 2x6 stud in order to provide adequate ...
If the wall is rectangular and not trapezoidal, it is typically built on the floor (trapezoidal is too, but a slightly different process). The header for the window is either sized by the engineer or it will be listed in the code book.
When the wall is finished assembled is is taken to the layout line on the floor where it is to be permanently located and ...
They are iron ( unlikely steel at that age ) identified by the density match to iron. The reddish color that looks like granite is rust on a pitted surface. Pig iron ( high carbon and silicon ) or wrought iron ( more or less pure iron ). An unusual shape for either as far as I know. My guess is that they are raw material intended to be made into something. A ...