[Intrigued]

Originally Posted by ASV

Portable Transfer Pump — 12 Volt, 3/8in., Model# 12VDCW | 12 Volt Pumps | Northern Tool + Equipment

think this will work?

Huh. 300 GPH = 5 gallons/minute. Look at what flows are expected for v-8 chevy hotrods: Electric Water Pumps: Stewart Components, Inc. 38 to 55 gallons/minute seems out of range for most cars. 5 gpm is an extra-good heater core flow.

I looked at the reviews of that particular pump, and wouldn't recommend it. From just what experience I have had with pool pumps, impeller duty cycle is the secret. The motors can go full-time, but most of the impellers are trash... of course, the only pool pumps I ever messed with were el-cheapos...