| CPC A61H 33/005 (2013.01) [A61H 33/6068 (2013.01); A61H 2033/0058 (2013.01)] | 18 Claims |

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1. A remote hot tub control system, comprising:
a hot tub having a drain line including an output valve configured to control an egress of used water from the hot tub, a water pump configured to pump water out of the hot tub via the drain line, a fill line including an input valve configured to control an ingress of fresh water to the hot tub, and a safety switch configured to detect a state of a cover of the hot tub;
a controller electronically connected to the output valve, water pump, input valve, and safety switch, the controller being configured to execute a draining and filling cycle of the hot tub; and
an input device in communication with the controller and configured to receive user commands, wherein
upon receiving a user command at the input device to execute the draining and filling cycle of the hot tub, the controller is configured to:
command the output valve to open and command the water pump to pump the used water out of the hot tub via the output valve,
receive a first signal from a signal source indicating that the hot tub has been drained of the used water, and in response thereto, command the output valve to close, command the water pump to stop pumping, and command the input valve to open to permit the fresh water to enter the hot tub, and
receive a second signal from the signal source indicating that the hot tub has been filled, and in response thereto, command the input valve to close;
the safety switch is a two-part switch having a first part attached to the hot tub and a second part attached to the cover of the hot tub; and
upon receiving a safety signal from the safety switch indicating that the cover is in an open state during the draining and filling cycle, the controller is configured to pause execution of the draining and filling cycle of the hot tub.
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