Fill the hot tub with water. You can stop when the water is past the filter and begin testing the equipment or fill it as full as recommended.
Remove the access panel on the outside of the tub. This allows you to inspect the plumbing for leaks and other problems.
Bleed air from the plumbing system. Near the pump, you can open an air lock screw. This releases air and needs closing when water begins to come out from the screw.
Open all valves near the pump. These must be open in order to circulate water through the unit.
Replace the access panel. Turn on the hot tub using the control panel.
Cycle through the different settings on the hot tub. For example, turn on all the jets, massage settings or other features of your hot tub. Place your hand over the jets inside the tub to check water flow.
Set the temperature on the hot tub. It can take a few hours for the tub to properly heat. You can periodically check the tub to ensure that it reaches your desired temperature.
Add chemicals to the water. Using a litmus strip or home water testing kit, place chemicals into the tub as suggested once you determine how much your water needs.