Water in the diesel tank - Page 2 - Motorhome Forums, Motorhome Discussion, Motorhome Chat

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post #11 of 38 (permalink) Old 06-04-2017, 16:48
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Originally Posted by Littlebt View Post
The water will settle on top of the diesel so if you cannot drain it easily you could draw the water out with a submersible pump making sure you are taking it from the top or the old hose pipe method until it draws diesel instead of water.

As stated don't run the engine.
Excuse me but that is B*llocks and confusing information.

The specific gravity of diesel is around 0.7 and water is 1.0 so the water will be at the bottom of the tank, where the take-off point is, so will be sucked first.

That is why water-drain taps are at the bottom of systems as are water-traps.

Geoff
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post #12 of 38 (permalink) Old 06-04-2017, 17:07
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Quote:
Originally Posted by Littlebt View Post
The water will settle on top of the diesel so if you cannot drain it easily you could draw the water out with a submersible pump making sure you are taking it from the top or the old hose pipe method until it draws diesel instead of water.

As stated don't run the engine.

Nononononono, that is totally wrong. The water is denser than the diesel and will settle to the BOTTOM of the tank.
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I'm daft and proud of it.
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post #13 of 38 (permalink) Old 06-04-2017, 17:22 Thread Starter
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Thanks to all...looks like our weekend is suspended.
Off tomorrow to try and find a container of 50 litres of fuel!!!
Will update on my progress. Can't believe I'm the only stupid bu***r to have done this ...so it's got to be solvable.
Thank goodness for retirement...we'll go away next week...no hassle....the weather forecast is still good....
Garcia
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post #14 of 38 (permalink) Old 06-04-2017, 17:45
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Originally Posted by nicholsong View Post
Excuse me but that is B*llocks and confusing information

Geoff
That's not nessasary, and you wonder why this Forum is dropping off.

Garcia,
My apologies I got it wrong, on a brighter note if there is one you won't make the same mistake twice.
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post #15 of 38 (permalink) Old 06-04-2017, 18:22 Thread Starter
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That's not nessasary, and you wonder why this Forum is dropping off.

Garcia,
My apologies I got it wrong, on a brighter note if there is one you won't make the same mistake twice.
I certainly hope not.....!
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post #16 of 38 (permalink) Old 06-04-2017, 18:28
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hi all
once drained into a container and left for a while the water will separate fully

and the diesel could be used again

the guys that do this for a living do this all the time


petrol in diesel, diesel in petrol all separates after a while


i would be interested in the outcome


barry
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post #17 of 38 (permalink) Old 06-04-2017, 18:40 Thread Starter
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hi all
once drained into a container and left for a while the water will separate fully

and the diesel could be used again

the guys that do this for a living do this all the time


petrol in diesel, diesel in petrol all separates after a while


i would be interested in the outcome


barry
I might try that....I was wondering how to dispose of the waste in any case.....
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post #18 of 38 (permalink) Old 06-04-2017, 18:45
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and may I suggest that you stick some fricking big labels on the filler caps of each to tell you which is which - just in case you have another mindblank in the future!

and good luck

and the Lord said unto John "come forth and receive eternal life". but John came fifth and won a toaster........
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post #19 of 38 (permalink) Old 06-04-2017, 19:03 Thread Starter
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and may I suggest that you stick some fricking big labels on the filler caps of each to tell you which is which - just in case you have another mindblank in the future!

and good luck
You know , I might just buy a new filler cap....both my water one and my diesel one use the same key....!!!
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post #20 of 38 (permalink) Old 06-04-2017, 19:30
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Quote:
Originally Posted by Littlebt View Post
That's not nessasary, and you wonder why this Forum is dropping off.

Garcia,
My apologies I got it wrong, on a brighter note if there is one you won't make the same mistake twice.
I thought it was very necessary to alert people in no uncertain terms, and so did Tugboat a few minutes later, in order to correct what might have encouraged incorrect actions.

I am not so emphatic if I am not sure of my ground and if the consequences for the recipient might not be so serious. I am sorry if you did not like my style of emphasis - in the cockpit such a cock-up would have received even stronger language.

Remember both Tugboat and I have received professional training involving fuels, their SPg( and how volume/weight alters with ambient temperature). We were both contributing that knowledge in our own ways - both quite urgently, as he has told me privately.

As for the 'Forum dropping off', part of the reason it is still going is that there is good technical advice on here from some members, including on this thread from several contributors. pleas do not knock these sort of contributions - there is enough excrement (genteel word for the sensitive) on the 'Brexit' thread.

Geoff

Last edited by nicholsong; 06-04-2017 at 19:35.
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