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Old 26 February 2007, 06:52   #21
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As a continuation of the first test I added some more Soltron...lots more. This is what happened.
Day 8.
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Old 26 February 2007, 06:54   #22
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Day 9.
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Old 26 February 2007, 06:58   #23
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Day 10.
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Old 26 February 2007, 07:02   #24
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After comments here, I started a new test. More realistic proportions of water/diesel/bug to keep Mr Polwart happy, a double dose of Soltron to start as recommended on the package and the container kept in the dark to keep Mr Soltron happy.

Day 1.
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Old 26 February 2007, 07:03   #25
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Day 2.
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Old 26 February 2007, 07:03   #26
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Day 3.
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Old 26 February 2007, 10:53   #27
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Hi JW
Interested in your results, I had a major problem with Bug when I first got my boat , but after a good clean of the tanks and treating it with soltron every time I've seen no evidence of it even with finer filters. I'm also not filling up at the marina pumps but the odd drum I've had sitting about at home, due to only recently getting the steering rebuilt!
Rgds
James
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Old 26 February 2007, 11:23   #28
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Hi Jelly, I've not had bug in the boat tank but I've been very careful about contamination. I get my diesel in bulk and this bug appeared last summer. It appeared in both the bulk tank and jerry cans which I'd filled from the bulk tank. The jerry cans were left full to the brim for several months and there was considerable water and bug in all of them despite filling them through a water separating filter. Far more water was present than could be accounted for by condensation alone. I reckon diesel is capable of holding microscopic sized droplets of water in suspension for a fair length of time and these had settled out to form the water/diesel barrier. I've no doubt the bug arrived with the fuel and I'd guess it's almost impossible for the bulk suppliers to keep at bay.
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Old 26 February 2007, 12:53   #29
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Quote:
Originally Posted by jwalker View Post
Ok James. Will do. The diesel filters I use have a hole size of 2microns so if there is a match for that it would be good.

The standard we keep is 50, 35, 25 & 10 micron I'll send some of each in the post

The 10 micron will block very quickly and the cake will act as a filter as it blinds

James
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Old 26 February 2007, 13:33   #30
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Bugs

Not sure if its of any help.
There is always some water suspended in diesel as it clings to other surfactants in it, even warships suffer from it for their gas turbines.
When they take on fuel, they do a quick last by putting so many mills of distilled water in to a graduted tube and then top up with diesel sample. give a good shake and see how much the water interface has increased, when settled if it is over a cetain amount (very small) then they wont embark it becuase of the bug (MBG)that will grow from it (sorry cant rem exact figures).
The bug mainly grows in static diesel ( hence why they recirculate all tanks and use tanks in last embarked first order)
If your using the your fuel alot then the risk is less as the tank gets recirced on constant refilling.
Once MBG is in a tank its very hard to get rid of as it grows up the sides of the tank and the best way would be to clean the tank(if that can be done).
That is also why you see tank cleaning vessels alongside warships as tanks are cleaned on a rota every time they are in for a period to reduce the risk of MBG.
Paul
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