Long long ago my dad buried a 55 gallon drum in his garage, right before he added a concrete floor. Left a stand of 2" pipe sticking up, with a threaded cap on top. To get fuel out he just screwed a crank type hand pump on and cranked out whatever he needed. Refilled it by pouring gas in. No Stabil, no nothing, and no problems. We uesd that thing for probably fifteen years before abandoning it...
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OBG