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A spa, sometimes known as a hot tub, is a great way to relax and enjoy the calming warmth of the tub's water. Making a DIY spa can save money, but it is important to remember that a DIY spa project is not always easy and it will require an investment of time and money. First and foremost, the builder will need to develop a detailed plan for creating the spa space; this involves planning not only for the spa itself, but also for the surface on which the spa will be built and any enclosure that may be built around the spa.
In most cases, a concrete slab will be necessary to provide a strong support on which the DIY spa can rest. Other support options are available, but a concrete slab is by far the strongest and most reliable. Pouring such a slab can be time-consuming, however, and the builder will need to allot several days to planning, prepping, pouring, and curing. The slab will need to be completely hardened before any DIY spa can be built on top of it, as well as any enclosure structures. If a concrete slab already exists where the tub is to be placed, a thorough inspection will be necessary to ensure the weight of the tub can be adequately supported.
Once the supporting slab is built, it will be time to consider what type of DIY spa is to be built. Various options exist, from wood-fired tubs with cedar walls, to spas with electric motors and acrylic shells. If the builder chooses a DIY spa that features an electric motor, it will be necessary to ensure a power outlet is nearby, and it is rated to handle the voltage requirements of the tub. Wood-fired tubs and some styles of propane tubs can be placed anywhere, regardless of power outlet availability, but they are not as consistent when it comes to maintaining water temperature.
Think about how often the tub will be used before deciding on a design for the DIY spa, as well as how many people are likely to use it at any given time. This will have an impact on the size, shape, and function of the tub. Remember that acrylic tubs often offer more comfortable seating, but round cedar tubs allow for more seating. Acrylic tubs will also require pre-molded acrylic tub bodies, whereas cedar tubs can be made from scratch.
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