We have a 110 softub spa on our birdcage. The spa is grounded. They had to install an outlet near the spa to plug it in and there was a permit involved when the bird cage was built. The electrician pulled the permit and we did not ask him to he just did what he knew we needed. We have regular windows and a normal sliding door going out to the spa which came with the house. We did not have to buy special windows or sliders.
Before we enclosed the lanai and put on the bird cage we had the spa sitting on our lanai and plugged into the nearest outlet. The softspas are portable spas and we just put it where we wanted and didn't call anyone because it just plugs into a normal outlet.
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