Can't find my water pump

When I was looking for my pump, it was easier to locate it by sound from beneath the RV. When I was inside the RV, it sounded like it was under the sink near the water heater, but after crawling underneath the RV, it was easier to hear that it was actually under the bed (which as it turns out, is where the freshwater tank is). The bed base isn't hinged so it can be opened, if I remove a small under bed drawer I can see the pump, but if I had to service it, I think I'd have to unscrew the bed base to reach it.

Even now that I know where it is, from inside the RV it's hard to tell where it is from sound alone, the sound travels weirdly.