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Thanks Dune , The biggest advantage of the hydrozone is that you can heat the swim zone at 102 and keep the swimming section at 80 . I never tested it in California but in a much colder climate like Montreal ( minus 20 degrees ) , we noticed a 700 $ year round by keeping the pool section at 70 and the swim section at 100 . I would have to contact our custumers in California to see how much they have paid . I will ask them for night picture and will post them .
Very nice - I'm sure your customer is enjoying their new swim spa! Cute dogs!