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hydraulic oil separation
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Posted by DANN G on June 05, 2007 at 10:23:42 from (68.188.198.160):
I have water in the hydraulics of my backhoe and after draining and refilling several times (5 gallons at a shot) I seem to be making slow progess at cleaning out the system. 5 gallons of hyd. oil is pretty expensive so I decided to try and separate out the water on the last 10 gallons I removed. I poured the oil in a drum with a valve at the bottom. I took a sample in a clear glass jar when I first poured the oil in. Now after almost a year it seems to be as separated as it's going to get. I have a 1/2 inch layer of clear water on the bottom, then maybe a 1-1/2" layer of gray oil in the middle and a 1" layer of nice brown oil on the top. My question is what is the layer of gray in the middle? I assume it is oil with water still suspended in in but for some reason will not separate. Anyone have any ideas?
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