Metamorphoses is a show that brings me a lot of pride. It was a unique technical challenge that forced us to rethink the way we approached our scenery. We faced 30 inches of water that needed to be chlorinated, heated, and circulated, a deck that needed to be sealed but not slippery, and a space with a concrete floor that made safe access for both audience and performers a particular challenge. Despite these challenges, we were able to create truly incredible art while still maintaining the safety of everyone involved in the process.
To preserve the Integrity of the costumes, we knew from the start that we would not be able to use a typical chlorination method. We arrived at a saltwater chlorination method that allowed not only for costume longevity but also prevented the space from smelling like a pool, giving the body of water the flexible ambiguity it needed as an acting space. To properly circulate the pool, we installed two bulkhead fittings on the side of the pool, approximately 1.5 feet below the waterline and 8 inches above the pool's base. On the exterior of the inlet bulkhead, we installed a screen using a pipe clamp to prevent debris from entering the plumbing system. These bulkhead fittings allowed us to install two half-turn valves, enabling us to isolate the plumbing system for maintenance. The inlet valve led to a circulating pump, which in turn fed water into a heating pump through a backflow prevention valve. This ensured that high-concentration saltwater did not end up in the heating elements. The backflow valve then led into a saltwater chlorinator, which used an electrode to split the salt molecules and chlorinate the pool, and then out through the outlet valve.
When approaching the pool, our first concern was, obviously, a catastrophic failure of the pool itself. When constructing the pool, we built the pool's edge using stock platforms that formed the deck itself, and reinforced the legs with a two-by-four support bar that connected the legs. We also used two-by-four trusses to strengthen each of the seams and legs. We then sheeted the interior of the pool with three-quarter-inch OSB. Once we had the main body of the pool built, we installed the steps using stock platforms and chamfered 2x4s to reinforce any 90° angles, ensuring the pond liner would not crumple into a corner and tear. We then laid down Roofing tar paper to protect against any inconsistencies in the theater floor. This was then covered with R21 roofing insulation to add a layer of insulation against ambient temperature loss and floor inconsistencies. We then laid a synthetic pond liner, which we secured with staples to the platformed pool deck. The weight of the water pressed the pond liner into the shape of the pool. We then sheeted the deck with quarter-inch MDF, providing a smooth surface for the marbled paint treatment.
Approaching the pool decking, we knew we would face issues with water making the deck slippery, which could lead to actor injury and damaged decking. We sealed the deck with a mixture of Minwax polycrylic translucent and 80-grit sandblasting aggregate. This allowed us to paint a thick coating of aggregate onto the floor, providing actors with grip when they walk, without the sealant being heavily damaged by long-term water exposure. To prevent continued water exposure, the decking was mopped multiple times during the show. However, costumes still pulled a large quantity of water out of the pool and onto the concrete floor, creating a potential slip Hazard for actors and audience. To combat this, we laid down water-absorbent and rubber mats, creating a safe walking path, whether it was wet or dry.