Help me figure out my boat (livewell)

[Blue197320]

mine are attached to a starboard pad and thats glued to the bilge. some one on my 20 screwed the float switch to the bilge but the screw they used went al the way thru the bottom. i just dont like drilling holes in the bottom of the boat if i can help it. since you have a rule pump it un snaps off that red base so you can change it out pretty easily. while in there id add a second pump. cant be too safe