The invention relates to a water discharging
system of a power surfboard or a motorboat, in particular to a
water level detection and automatic water discharging
system of an engine compartment direct-
current electric pump for the power surfboard. The
water level detection and automatic water discharging
system comprises a water discharging
pipe, wherein a water inlet of the water discharging
pipe is formed in a soleplate on the inner
tail part of an engine compartment, and a water outlet of the water discharging
pipe runs out of an engine compartment water discharging opening located in a top panel of a floating plate body; the water discharging pipe is provided with an engine compartment water discharging filter and a direct-
current electric water discharging pump, a
water level detector is arranged on the soleplate on the inner
tail part of the engine compartment, both the direct-
current electric water discharging pump and the water level
detector are communicated with a controller, with a
single chip microcomputer, of a
control system through a conducting wire, the water level
detector feeds a detection
signal back to the controller with the
single chip microcomputer, and the controller with the
single chip microcomputer controls the direct-current electric water discharging pump to run automatically. By adopting the structure, the back flowing of water is avoided, no accumulated water in the engine compartment is guaranteed, and the application performance is improved.