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Old 02-22-2012
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smokediver smokediver is offline
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Default WVO and metal tanks

I have slooowly come to realize that there's some special chemistry between wvo and metal tanks.

Over time the wvo forms a black skin over the metal which eventually starts to break down and get little black flakes of slime all in the filters. (Polymerization electrolysis)
Doesn't do it in plastic tanks like the trucks factory fuel tank.

No other problems except a nightmare of filter changing till it's all gone,
or as I usually do, break down and drain and wash the tank.

I've had to wash the tractor fuel tank twice and treated it with algicide the last time...clean so far.

Now it seems to have coated the inside of my auxiliary fuel tank in my truck...
stopping up filters very reguarly now between it and the main tank.

Anybody else experienced this?
Is there a quick and easy way to prevent it?
Am I on the right track with the algae trreatment or is it polymerization ??
Is there something I could put in the tank and let it slosh around for a couple days to clean it all out instead of pressure washing it??

Thanks.
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Last edited by smokediver; 02-22-2012 at 10:18 AM..
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Old 02-22-2012
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MAXTORQ MAXTORQ is offline
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Algae is what it is. Bio Kleen is the answer. And if you store it use this stuff.

http://www.powerservice.com/cd/
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Old 04-21-2012
Biodieseler Biodieseler is offline
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Personally, I've never had an actual problem with either polymerization or algae in either diesel fuel or biodiesel or even straight vegetable oil. So I can't say from experience what you're dealing with.
I do know that algae and polymerization are potential problems, and polymerization only a problem of concern in steel tanks apparently. Although I've seen the little film of crud inside all the steel tanks I've used for WVO, it's never accumulated to being a problem. If it is polymerization, there are a few little tricks to help reduce the effects. Keep the tank full whenever possible for example, as it is the oxygen, oil and steel that somehow all work to create the polymerization. so it should only build up where there is air in the tank. Another thing that may help is to make sure your fuel is not acidic, which can be a problem with WVO depending on your source. Be interesting to do a titration on the oil if you can to know if you have acidic oil.

Otherwise, I'm not sure what to suggest. the link Max put up here is good to have. I didn't know powerservice made that particular conditioner. Sounds like it should work if it's Algae.

As for a cleaner to clean out the crud inside the tank, I've heard that lye (same as used in making biodiesel) will strip the polymerized oil right out.. However you would still have to rinse the tank out and make sure it's dry before using again.

Good luck!
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Old 04-21-2012
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Smoke, that problem you're having with the fuel could be causing your VP problems too.
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