Water Tank Miss Match Mistery!

Discussion in 'Auto-Trail' started by OddSocks, Apr 22, 2014.

  1. OddSocks

    OddSocks Read Only Funster

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    My lovely 1990 AutoTrail Apache.....

    I cleaned out the water tanks today, as I am new to the van and decided to measure them. I think that waste tank was just over half full looking at the meter, it drained about 60 something ltrs. So my guess is that is a 100ltr waste tank. I drained and filled the fresh water tank too - it is a 50 ltr tank.

    So why the mismatch? I would have expected a larger fresh water tank.
     
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  2. Armytwowheels

    Armytwowheels Funster Life Member

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    Hi Oddsocks

    The answer may be - don't trust the gauge for the waste tank! Ours lies to us all the time. Unless a previous owner has changed the tanks for some reason.
     
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  3. Terry

    Terry Funster

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    What Sandra says :thumb:it is normal for the fresh tank to be larger than the waste but they could have done it the other way around simply by fitting what fits in the gap :Wink: try measuring the tanks to compare
    terry
     
  4. easygirl

    easygirl Read Only Funster

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    Waste are usually smaller than fresh, i presume because we dont put all the fresh water into the waste, we use some for cups of tea etc
     
  5. scotjimland

    scotjimland Funster Life Member

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    What Terry says.. I think they they fit the tanks to suit the space.. but in my experience the fresh is generally smaller than the grey .. this means you don't need to dump so often.. but generally when you fetch fresh you dump grey anyway.

    For example .. on our RV the fresh was 30 galls .. grey 50 gals and a 50 gal black ..
     
  6. John Laidler

    John Laidler Funster

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    Ours has a 100l fresh tank and 60l grey. This ratio works well as one tends to need emptying when the other needs filling. The fresh needs to be bigger as it also flushes the loo.
     
  7. OddSocks

    OddSocks Read Only Funster

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    Hi all

    Just been clambering around under the van. The grey is definitely twice the size of the fresh tank. Same width but twice as long. So it would not surprise me if it were 100L and the fresh only 50L.

    I have separate water supply and tank for the toilet.

    It does look like they have just filled the space available with the respective tanks. I wonder what informed their decision though, as either one could have been used for either purpose at build time. It should work out OK though, as we only use the fresh for washing, we don't drink the water from that tank. We buy big bottles for that.
     
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  8. chaser

    chaser Funster

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    It shouldn't be a big job to swop the pipes over if you wanted it the other way round, but the problem would be if you could ever get all the grey matter out of the tank, probably hard to get in to in situ
     
  9. John Laidler

    John Laidler Funster

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    If you have another tank for the flush and use bottles for drinking water I think you may get away with such a small tank, unless you intend to use the shower a lot. I would see how you get on before rearranging anything.
     
  10. Terry

    Terry Funster

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    UURRRG -I would go down the new tank route rather than swop pipes -or better still leave it all alone -50 ltrs should last a few days :Wink:On the ambulance I have a matching pair of 75ltr tanks and that can last several days depending on how we used it :thumb:I generally hear the water pump change tone giving me warning it's running low so then I make my way to fill up and empty :thumb:no fancy non working level gauges etc,just experience :BigGrin:- I learn the hard way by once emptying both tanks to travel home and then Ann wanted the loo that is fed by the fresh tank :Doh: one ear bashing later :Eeek: never again :BigGrin:
    terry
     

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