Question: Electric Water Pumps

[V6MaroFL]

I understand the general opinion of these things is they are terrible for daily drivers because they don't last long at all. Why is this? Crappy internal motors? Is it not true that electric septic pumps pump ~35 GPM for years without going bad? Just curious.
Thanks in advance.

[ September 05, 2003: Message edited by: V6MaroFL ]</p>

[need4speed]

it takes a considerable amount of power to pump the coolant through your engine and radiator. An electric pump can do it, but the motor has to be fairly large and powerful. This will obviously mean it will use a lot of electrical power, most likely higher amps. The electric motor might cause other parts of the car to not get the electricity they need. So they have to make the motor smaller yet do the same amount of work that the large one did. The motor gets hot, wears out fast. Septic pumps, sewer lift stations, water wells, etc. don't have much pressure working against the motors, and plenty of room to put whatever motor they want there.

I've designed a lot of sewers for new city subdivisions at work, so I know my ****!

[V6MaroFL]

Cool, thanks for the info.