I installed in-line fuel pump/priming bulbs upstream of my Racors. These are valved in or out of the fuel circuit as needed. In use, you squeeze them like an outboard motor's fuel priming bulb to re-fill the racor housings. This way there is no need to carry an extra container of fuel, and all the fuel going to the engine's final filter must go through the racor's element first.  I replace the filter, install the o-ring and cap, start the Tee Handle, then with the lid just slightly ajar, begin pumping fuel. When it reaches the top of the housing, finish tightening the Tee handle. Done. My cummins never miss a beat after this exercise. You can buy the kits to install these in line priming pumps from seaboard marine (sbmar.com). These guys are the diesel (esp cummins) gurus.

-----Original Message-----

Upstream, that is, before the filter. Between the tank and the filter.
You are pumping fuel from the tank INTO the filter.

On 5/29/2014 3:57 AM, Stan Nackdymon via Trawlers-and-Trawlering wrote:

It is generally recommended that pump be installed after the fuel filter and that the pump pull fuel through the filter rather than push it.

It is my understanding that placing the pump before the filter can emulsify fuel/water and reduce the effectiveness of the water separator.

Randy Thompson
M/V Soul Tender

Sent from my iPhone

It's a squeeze bulb. I hardly imagine it will emulsify fuel and water.
Besides, as already pointed out, if it's after the filter it will be
useless to prime the filter housing.

On 5/29/2014 9:35 PM, rt wrote:

True enuf, my misunderstanding. All I saw was the word pump.

Randy
M/V Soul Tender