Two stainless steel pipes (Ø50mm) are installed in the side of the hot tub. The external heater is connected to these pipes through two 1-meter length heat resistant hoses. The hoses are secured with clamps on each end of the hose. It is crucial to make sure that the heater hoses are as straight as possible. The lower hoses must be parallel to the ground, it cannot be at an angle.

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