[Tiara Open] Bilge Pump Just Forward of the Shower Sump

[It's A Need]

New boat for me...3100 Open.  I was cleaning the shower sump out and found a bilge pump just forward of the shower box.  Is this the "Mid Bilge" pump?  It has a float switch next to it which was floating in the water next to the pump.  I can't see the pump as it is mounted under the floor just forward of the steps.  I've read some other posts about the steps having to be removed (ugh).  The pump operates if I lift the float switch.  Back to my original question, is this the Mid Bilge Pump?