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Old 18 August 2011, 15:58   #1
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Water in fuel

As the title suggests I seem to be having some difficulty removing all of the water in my fuel tank. She's afloat and has a full 300 ltr tank which I'm disinclined to throw away. Can anyone recommend a useful product for dealing with this?

Oh and no WillK I am NOT looking for a box of matches!
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Old 18 August 2011, 16:23   #2
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Courageous - you've not said what you have tried.

The water will sink to the bottom of the tank. The pickup for the fuel may not be at the very bottom of the tank. So my first step would be on a calm day (so fuel and water and not getting mixed) to put a long piece of thin hose down the fuel filler to the bottom of the tank (and it the boat is stern heavy, to the rear of the tank). Then attach some sort of pump to other end of the hose (something like the oil extraction pumps that GelPlane make under the "pela" brand would be ideal, but there are cheaper pumps without the "resevoir" available. Electric pump may not be a good idea for obvious reasons.

If you really want to get your fuel dry after that or you think you only have a small amount in there to start with then you might want to try aquasock (not checked if suitable for petrol or only diesel).
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Old 18 August 2011, 16:52   #3
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How much water do you have?

Quicksilver used to make a small cage full of hydrophillic powder that absorbs the water from the fuel. You simply lower the cage into the fuel tank and it goes to work.

Clearly it's limited and can only take so much out.

Chris
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Old 18 August 2011, 17:10   #4
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Oh and no WillK I am NOT looking for a box of matches!
I sense that I have been Disparaged.

As it happens, I have many years of experience in removing liquids from fuel tanks, quickly, quietly and efficiently. 'nuff said.
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Old 18 August 2011, 18:30   #5
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"Disparaged.........." I'll have to get back to you on THAT one!

Polwart - I've been running the engine and draining from the double in line filters that I fitted. I'd say that I have probably removed some 3 litres or so by now. I'm hoping I have found the source as it was sweet water I reckoned it could only be either the vent or the filler with a possibility of the sender flange. I'm down to occasionally finding a little in the filter bowls now so I'm hoping that a product will do the business for me now. I'll check out aquasock, Chris's powder...... oh and "disparaged" and get back to you!

Ta
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Old 18 August 2011, 18:42   #6
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where do you fill up? any risk it is coming in with the fuel (which means you are paying 1.30/L+ for water !) - condensation is another possibility if you have large tanks sitting nearly empty - especially if they are metal - although 3L seems a lot for that.
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Old 18 August 2011, 18:57   #7
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Filling station - yes wondered about that myself. I may ask around and see if any others have similar experience here. I'm using the pontoon fuelling station in Rosas marina. Yes it's definitely too much for condensation, especially as the tanks are always nigh on full.
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Old 19 August 2011, 03:59   #8
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Filling station - yes wondered about that myself. I may ask around and see if any others have similar experience here. I'm using the pontoon fuelling station in Rosas marina. Yes it's definitely too much for condensation, especially as the tanks are always nigh on full.
I think you found your answer!
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Old 19 August 2011, 04:46   #9
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Tino - I would hope so but it's not out of the question that the fuel filler etc etc couldn't still be to blame. Now I'm more interested in the cure.
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Old 19 August 2011, 13:08   #10
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You bought 3L of water at the fuel barge. Which honestly is a HUGE amount of water.

You're best "cure" is to find another place to get gasoline although you may get some relief by complaining to the fuel people, although I kind of doubt it.
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