There's a drawing of the bilge pump on page 43 of the Utopia Shop Manual, and there is a description of the bilge pump operation in the Operator's guide on page 26. Here's a link to it, not sure if it's in the forum files:
https://www.operatorsguides.brp.com/public/tmp/000665.pdf
Here's what it says:
Bilge Pump Switch
A 2-position push type switch. Press switch to ON position when a manual operation is required (after cleaning, storage, etc.). Press to OFF position when bilge is dry.
CAUTION: Using the bilge pump for a prolonged time when the engine is not running will discharge the battery. NOTE: The bilge pump may be operated without the safety lanyard on its switch.
CAUTION: Ensure to always turn pump OFF when bilge is dry or before operating the engine above idle. Bilge pump will then switch to automatic mode.
Automatic Bilge Pump
An automatic bilge pump will evacuate water from the bilge. A water sensor detects the water which activates the bilge pump. After the water is pumped out, the pump shuts-off automatically. This automatic mode is working at all times: with/without safety lanyard on its switch and with/without engine running.
Haven't gotten a chance to confirm on the boat yet, but what I remember appears to be the same as what the manual says.