WOO-279: Rebar
Rootop pool and spa with autocovers in Minnetrista.

Rebar (short for reinforcing bar) is used as a structural support to reinforce the concrete walls and floor, providing strength and preventing cracks by essentially acting as a "skeleton" within the concrete, allowing the pool to withstand the pressure of water.

A view of the pool from the steps side.

Same pool, different angle. Spa can be seen at the top of the frame.

Good picture of spa rebar over the plumbing.