bathtub

A bathtub is a large container designed for bathing indoors. It is installed in a bathroom and filled with water for immersion. Historically, bathtubs were simple basins used for washing; the modern tub with indoor plumbing and a drain, overflow, and water supply became common in the 19th and 20th centuries, enabling longer, more comfortable baths.

Common types include freestanding, alcove (three walls), corner, and built-in/drop-in tubs. Soaking tubs are deeper. Jet tubs or whirlpools include water or air jets. Materials vary: enameled cast iron offers durability; steel with porcelain enamel; acrylic and fiberglass-reinforced acrylic provide lighter, cheaper options; stone or composite materials exist.

Typical dimensions: 60 inches long, 28-32 inches wide; interior depth 14-20 inches. Mounted against walls or freestanding. Features include drain, overflow, faucet, handles, showerhead, optional doors for walk-in; hand showers, thermostatic valves, anti-slip surfaces for safety.

Maintenance: regular cleaning with non-abrasive cleaners, rinse after use, remove soap scum; clean drains; check seals for leaks; ensure ventilation to prevent mold. Safety: non-slip surfaces, grab bars, thermostatic controls. Environmental considerations: water use, low-flow fixtures, and selecting efficient models when upgrading.