There are many North American manufacturers of whirlpool bathtubs and almost a hundred manufacturers of residential hot tubs. At the time of writing this guide there are only a handful of commercial hot tub manufacturers.
Originally all types were called whirlpools. These units were made of concrete, and either painted or tiled. Unfortunately these early concrete versions were very expensive due to the custom labor and bulky materials, so mass popularity was limited. Furthermore, the porous wood made proper water sanitation and chemical balancing difficult, and the dark wooden round or oval shapes limited marketability.
These negatives led to the introduction of gel coated, fiberglass reinforced models. Unfortunately, within a few short years, Gel Coat fiberglass spas proved to be unable to stand up to hot, chlorinated water 24 hours a day, days a year. The acrylic sheet prevents water from penetrating to the fiberglass layer and provides a surface that is durable and available in a wide assortment of colors. The addition of a hot tub has proven to increase the sales appeal of condos, hotels and fitness facilities.
While there are hundreds of manufacturers in North Americas manufacturing home hot tubs, only a handful manufacture commercial units designed to meet Provincial or State regulations such as riser heights on the stairs, dual suction ports, color coding of drop offs and stair edges, filter turnover ratios, etc. Health and building codes do not allow conventional home hot tubs to be installed in these types of commercial facilities.
Conventional residential hot tubs that are sold for home or backyard use are not equipped with the right equipment to meet Commercial codes in most Provinces or States. Furthermore, the shell designs of residential hot tubs do not generally meet the required codes for Commercial installations and often do not have proper access steps or are equipped with lay-down loungers which can impede safe movement within the spa.
Commercial units are generally larger. They have a separate pump to circulate the water through the filter and the heater and a separate pump or multiple pumps to drive the jets. They are available in many voltages, both single and three phase. Commercial units must have steps that conform to building codes in regards to riser heights and surface area. The edges of the stairs and seats must be color coded. The surface skimmer and all fittings must be NSF approved and the water turnover circulation rates must meet specified guidelines.
In most States and Provinces the unit must be equipped with an automated chemical sensing and dosing controller as well as anti-entrapment devices, automatic water level controllers, etc. Common types of commercial hot tub shells include concrete, stainless steel, fiberglass and acrylic.
This water is directed through the filter generally sand but some times cartridge through the heater usually electric and back to the hot tub through two deep heat return fittings that are usually located in the lower foot well section of the spa.
This circulation pump generally operates twenty four hours a day but can be installed on a timer. The jets are driven by a separate jet pump, which draws the water through a minimum of two suction fittings on the lower foot well sidewall and returns the water through the hydrotherapy jets.
The jet pump is in most Provinces and States is required to be connected to a fifteen minute timer mounted at least ten feet from the spa water. It is believed that if the user has to continually exit the spa to reactivate the jets that they will not stay in the spa too long which could lead to drowsiness or fainting. All plumbing is in flexible or rigid P. Water level controllers maintain proper water height to ensure proper circulation, filtration, heating and jet action.
A special fitting is installed on the spa that allows water to flow to the leveler. About joshw24 34 year old guy. Into sports, pop culture, advertising, and trivia among other things. You are commenting using your WordPress. You are commenting using your Google account. You are commenting using your Twitter account. You are commenting using your Facebook account. Notify me of new comments via email. Notify me of new posts via email.
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