When purchasing your spa, make sure to buy a protective cover.
Most spas come with such a cover, and no spa should be without
one. Such rigid covers serve a major safety function, locking
kids and pets out. Covers also help keep the spa clean, and lock
trapped heat in. Studies have shown that leaving a spa uncovered
even for one day can boost utility bills.
The most durable covers are constructed of foam with a thick vinyl top and non-cotton backing. The foam should be a minimum of three inches thick, and the covers should have an efficient method of securing it against weather and curious children. If you have children, buy a locking cover and always remove the entire cover before climbing into the spa.
It is important to understand that because the spa industry is relatively new and growing fast, new manufacturers and dealers are popping up all the time. Spa construction, quality, warranties, and service can very greatly. Make sure the spa and its component parts are covered with a long warranty, and make sure the parts carry the seal of the International Association of Mechanical Plumbing Officials, and/or the UL (Underwriter Laboratories) seal of approval.
Be aware that a spa warranty can vary from one component to the next in the same spa. Some warranties, for example, cover the shell for two years, the main structure for five, and equipment -blowers, pumps, etc. - for as little as one year. Make sure you know what is covered, and for how long. Make sure any repair work can be done on sight, or you may find yourself faced with shipping your spa back to the manufacturer at tremendous inconvenience and considerable expense. Does the warranty include parts and labor? Ask questions before you buy.
Choose your spa and spa dealer carefully. Does the dealer offer full-service installation? What does the dealer know about the product he is selling? Make sure your contract includes delivery terms, installation and hook-up dates, a complete listing of all components and services, including the manufacturer names, model numbers, and service to be rendered. Don't be afraid to ask questions about the spa. Can the heater be converted from 110 to 220? How easy is it to remove and service the filter? How noisy is the blower? Can the hydrojets be run independently and simultaneously? How quickly can the heater raise the water temperature? Does the dealer offer a special deck kit or gazebo to fit your spa?
Shop carefully, even if it means spending a few dollars more on a reputable, national brand with an excellent service record, and ask a lot of questions before you buy. It could make the difference between enjoying a hot soak, and getting yourself into hot water.