I am a firm believer that if you carry a new spare pump you will never need it.
Don't know what brand I have but since 2009 it has pumped tens of thousands of gallons issue free. 1800 nights worth at least. We use CG water only to refill the water tank. Yes, the pump can be heard. I like it that way. If there is a leak in the system, never, the cycling of the pump will let me know about it. I don't understand the desire to have an especially quiet pump.