One consideration is how much hydrotherapy or how many jets are desired? Up to about 40 jets works with a single pump spa. Any more than that should have 2 pumps in the spa. Another pump is the air blower that is also found in the higher end spas.
Zoning is a system that moves water flow from one section of the spa to another. This helps a one pump spa provide more power to a particular side of the spa as needed.
The deluxe spas with air blowers also feature turbo charging where the water gets another boost from the forced air of the blower that can be routed through the water lines or through the dedicated air injectors for a more champagne like bubbling that spas are known for.
Many quality hot tub features are hidden such as quality, name brand components, pumps, controls and heaters. Other features are out in the open for all to see such as the waterfall feature or LED lighting.
A sound system can also be added to most any spa. There is the lower end sound system with speakers and the high end Vibrasound system that turns the spa shell into the speaker creating a uniform sound field no matter where you sit in the spa. The Vibrasound system also adds the subwoofer for true bass.
Although an aromatherapy canister can be added to most spas that are outfitted with a spa blower, the most popular form of aromatherapy comes in liquid or crystal form that can be added to any hot tub, even those without a dedicated aromatherapy system.
Another nice feature is the integrated chemical dispenser inside the filter. This avoids having to use a floater to hold the bromine or chlorine tablets.
Want a salt water spa? Almost any mid-range or higher end QCA Spas can be upgraded to a salt system by adding the bromine salt system. Just buy the Bromicharge sodium bromide and put a reserve in the spa water, then the chemicals to kill bacteria and sanitizer the water are manufactured automatically by the bromine salt system cell.
Unlike an ozonator that can be retrofitted later, the bromine salt system is best when factory installed at the time of ordering to avoid a costly service bill.
When using the spa outdoors, always use a hard cover instead of a flexible soft cover that may come standard with the lower end spas. Get a free hard cover upgrade on those spas as well from Hot Tub Outpost. They believe in offering quality from the get-go to avoid any unpleasant surprises. After all, you want to get into your spa and enjoy it from day 1, and not receive an incomplete kit.
Have any questions about buying the right hot tub? Contact the folks over at Hot Tub Outpost for knowledgeable assistance.