Hi Malcolm, The shake test that you said is used proportion between water and BD 1:1 or 2:1, also, I plan to use my BD with a 125hp 1996-yanmar diesel engine for water pumping. Hi Michael, Keith, I did not do both test you said. however, I will figure it out what I gonna do with the said-test methods. Hi Mike, It is clear and has some soap(very little). I measure pH with litmus paper in the third wash. Thanks all regards, Karn
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