Hot tubs are were typically located outdoors, and are often sheltered for protection from the elements, as well as for privacy. Other variants in naming include "Spa", and the trade name "Jacuzzi". These variants can be used to mean an indoor fixture, but a "Hot Tub" is almost always outdoors.
The spa shell is the exterior of the tub, and is composed of a surface and an understructure that are bonded together during the manufacturing process. The surface is the source of the color, look and feel of the spa, so it should resist deterioration due to the sun, spa chemicals, or normal wear and tear. Some high-end shells have special coatings to make them more stain resistant or have anti-bacterial ingredients molded into the shell material.
In 1955, the firm decided to market the pump, dubbed "J-300", as a therapeutic aid, selling it in bath supply shops. To generate a little publicity for the unknown product, portable Jacuzzis were included in the gifts given to contestants on TV's Queen for a Day. It was pitched as relief for the worn out housewife. When Hollywood stars like Randolph Scott and Jayne Mansfield began offering testimonials, the Jacuzzi whirlpool bathtub started to acquire its fame. Jack Benny was hired as a spokesman for Jacuzzi.
The Jacuzzi assembly plant is located in Chino, California. This plant was the first ISO 9001 certified hot tub production facility in the world. It had the capability of producing up to 300 spas per day for their domestic and export business needs. Their product line has many unique features such as patented jets, rainbow waterfalls, synthetic sun-resistant siding, stereos, ergonomic seating, triple-layered shells, full foam insulation, and a solid A.B.S. pan bottom.
Water sanitization is very important in hot tubs, as many organisms thrive in a warm, wet environment. Maintaining the hot tub water chemistry is also necessary for proper sanitization and to prevent damage to the hot tub. In colder climates, if the hot tub is not used year-round, it should be "winterized" for the off season.
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