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I could never (in good conscientiousness) recommend or install a Self-Contained Automatic Bilge Pump.
I suggest a larger than necessary bilge pump with a good quality separate float switch, and with an Un-Interruptible power source to the Float Switch.
Mount the float switch at a slightly higher elevation than the pump's lowest draw-down-capability.
Also...... say NO to the Auto/Off/Manual helm switches.
(you do not want any means for accidentally leaving the power turned off)