I have a dual racor set up that runs off one or the other (not cheap, assembly was $1200 when new in 2001 so I guess it's a lot more now)
Also have canister filter on engine.
I keep a 1 gal jug on boat with fresh diesel should I have to change filters. Also keep set of new filters.
I drain & clean filter bowl, install new filters and fill with new diesel.
The engine canister I fill and tread on .
My engine does have a primer pump but have never had to use it.
Some motors really suck, you run out you have to crack injectors to bleed air out.
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