A lot of us use the little facet pumps. They come in several sizes. The usual one stocked in most napa stores is rated at 35 gph, but they have at least three others rated from 25 gph all the way to 45 gph. Pressure ratings are 1-3 psi for the lowest up 7-9 psi. The part numbers are 6101049, 50, 51, and 52. I use the stock lift pump on my Mercedes, but I have a facet online for when the veggie filter starts getting plugged. I have also had one of these little pumps pluggin away on my veggie furnace for 1 and a half seasons and it just keeps going. For that application it is mostly unfiltered oil as well, so these are tough little pumps.

On edit, I had a link posted, but for some reason it was dead so just go to napaonline.com and do a search for the above part numbers.

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