That is correct, good observation. The system has a "look ahead" feature that keeps the motors spinning if another car is approaching. This saves electricity by not having the motors start and stop a bunch as that is where a lot of the power is used.
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4:40 sirens
I also heard it at the beginning of the video.
@@jormuz100 Yep!
the car wash is presoak and high pressure cleaning and triple foam and high pressure blue wave spot free rinse with power tech 21 dryers
is wheel boss not wheel scrubber?
That is true, a "Wheel Boss" is just a manufacturer name for their specific wheel scrubber.
HI-Performance Wash Systems the eco express 4:40 theres an siren
That is actually the sound of the blower motors spinning up at the end of the tunnel.
HI-Performance Wash Systems yeah it does a siren only on 1 car
That is correct, good observation. The system has a "look ahead" feature that keeps the motors spinning if another car is approaching. This saves electricity by not having the motors start and stop a bunch as that is where a lot of the power is used.