From the hot tub disconnect switch, run Schedule 80 PVC conduit to the hot tub. Insert four insulated copper wires into the PVC conduit (black, red, white and green).

Threaded rigid metal conduit or intermediate metal conduit with explosionproof fittings [501.10 (A) (1) (a)]. MI cable terminated with fittings listed for the location [501.10 (A) (1) (b)]. In ...