After reading all of these comments and costs, our decision to get a SPA (8ft by 8ft) looks like a bargain, we heat it during the winter to 102 degrees and I turn off the heat in the spring, and it typically settles at 80 to 85 degrees, so I can cool off when the feels like is 105 degrees. Yes, it is not swimming, but it is VERY relaxing and very helpful messaging sore muscles with all of the jets.
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Pennsylvania, for 60+ years, most recently, Allentown, now TV. 
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