What is the button layout to operate the hot tub?

Only the hot tub with air jets, filter, and LEDs will have these buttons. 
There are three waterproof buttons on the side of the hot tub. 
1. The button on your left side is used to switch on the LED light, change the colours and switch it off. 
2. The middle button controls the air jets (whirlpool SPA system).
3. The button on your right-hand side turns the water filter on and off.