Drain |top|: Caustic Soda Down

She remembered him using caustic soda once. Lye. Sodium hydroxide. He’d worn thick rubber gloves and safety goggles, and he’d spoken to her in a low, serious voice he usually reserved for thunderstorms and hospital visits. “This stuff doesn’t negotiate,” he’d said, pouring the white, pearl-like beads into a bucket of water. The liquid had hissed and steamed, growing hot enough to boil. “It eats through anything organic. Hair. Grease. Flesh. You respect it, or it respects nothing.”

A fine, invisible mist filled the crawlspace beneath the kitchen, settling on the wooden joists, the fiberglass insulation, the cardboard boxes of Christmas ornaments. Clara, upstairs, heard only a faint hiss, which she mistook for the sound of success. She rinsed the sink with water, as instructed, and went to bed. caustic soda down drain

Down in the basement, the heartbeat of the house changed. The rhythmic thrum became a frantic, shuddering pulse. A hairline fracture in the horizontal run of the main drain—a flaw that had been there since the house was built in 1962—opened like a mouth. The caustic solution, still hot and aggressive, found the gap. She remembered him using caustic soda once

The caustic soda was working. It was dissolving the clog—a monstrous tangle of bacon grease, potato peels, and a clump of her own long, gray hair. But the reaction was more violent than she’d anticipated. The pipe, old cast iron already pitted with rust, was not just being cleared. It was being eaten. He’d worn thick rubber gloves and safety goggles,

Clara woke to the smell. Not the rotten smell of the clog, but something sharper. Alkaline. It smelled like bleach and pain and hot metal. She walked to the kitchen in her bare feet. The linoleum was warm. Unnaturally warm. As she stepped onto the section above the leak, the floor gave way like a rotten log.