Apologize for a quick hi-jack.
Bruce- I am using a Dedenbear WP3. 20 gals /minute. Only uses 3amps.
It feeds the Dedenbear water manifold with one hose. The manifold is cast to distribute flow equally. The pump can bolt on to either end of the manifold.
This allows the use of the stock fuel pump!
Only have used this on the test stand, and it ran for an hour without overheating. Finishing rust repairs so never been on the road with it yet.
Guy (914GT) turned me onto this setup and he has been using it since 2004? without issues. Other's have used the Meziere pump with dual outlet hoses (914SBC, for one.).
It's small, quiet, and supposed to operate for @3000hrs. Replacement motors cost @98$
Pump was @ 270$, manifold @105$
It's a clean set-up and you may want to approach Guy with additional questions.
You can see it hiding under the fuel pump. Just welded on an angle bracket and bolted it on with two rubber isolators.
Click to view attachment