12V BL-2512SI / 24V BL-2524SI Submersible Bilge Pump

12v dc marine water pump works?

Non-automatic submersible
pumps offer traditional operation activated by a float or panel switch.
Removal of the motor cartridge allows for easy cleaning of the strainer
and impeller in the event that the pump becomes clogged with debris.
Electric Submersible Pumps are by far the most popular type of electric
Bilge Pumps, submersibles give very high outputs, are cost effective,
have low amp draw and are easy to install. They are designed to fit in
the lowest part of the bilge and only require discharge pipe work and
electricity supply.