Santorini deluxe hot tub all spas in the platinum deluxe range come with a sealed base as standard which is an integral part of the hot tubs support structure insulation is vital to both the running of your spa and the cost of running a spa we use a foam insulation which aids keeping the water temperature and also preserve the energy used to heat the water lighting scientists have claimed that the amount of lighting affects the regulation of emotions such as happiness and sadness through t