Best Water Pump?

[Raril]

I have used many different 12 V fresh water pumps and all broke soon. Is there any pump that lasts? Mostly the membrane breaks.
Thanks

[Amberjack]

I use a Jabsco 36950 for the last 20 years. They last about 5-6 years before the valves start leaking internally causing it to cycle and shut off again. It still works, just mildly irritating. You can buy rebuild kits to cure that and get another 5-6 years. Finally replaced the whole pump after maybe 15 years. They are expensive, about $600. I recommend installing a pressure accumulator with it which reduces the frequency of cycling. The accumulators need to be repressurized (with air) every 3-4 months so install it where the valve is handy.

The pump is visible here under the settee and the pressure accumulator is just out of site.