At loooong last, the lower floor is ready for concrete.  The under floor insulation is in, the rebar and the infloor light bases are in. The septic tanks are in. There is a square 2 compartment tank and a separate one that the dosing pump is in.

This gives you an idea of the complexity of the lower level. The light blue insulation had to be fitted to the pool concrete. The black box with red protective tape is the pool perimeter drain. A piece of it without the tape is in the foreground, it’s silver with drain slots.

Here you can see the yellow vapor barrier that goes under the insulation. The vertical black cylinders are the bases of the infloor lights.

Here’s the east side, which also has infloor lights. An interesting note on the rebar. The pool isn’t tied to the house, the rebar you see on the right just butts up against the pool, but it’s not drilled and epoxied in. The architect was quite insistent that the pool not be bonded to the house. The rebar on the left was placed into the slab on the far left.

The equipment room and part of the sauna floor. The conduits for the infloor lights are the grey ones to the left of the pool circulation pipes.

An overall look at the area around the pool.

It’s a bit dark, but you can see how the lower mechanical room floor slab is tied into the foundation walls with the short pieces of rebar that are drilled into said walls.

Yuka, on patrol!

In back is the usual 2 compartment rectangular septic tank. In front is what I’m calling the “dosing” tank. Since we couldn’t quite get the 5’ elevation difference between the septic tank and the leach field that is required by code for a purely passive system, we had to put a dosing pump in. It’s placed in the cylindrical tank. Going to an active system is not really our first choice, but it’s not all bad. The float valve that turns the dosing pump on is set so the amount of liquid that will be pumped fills all the leach field pipes and fully utilizes the leach field. In a passive system you get a lot of small amounts that just use the center of the field.

The leach field. The inlet is at the top and it feeds the barely visible field lines that run under the coarse gravel.