Water tank drainage

Discussion in 'Motorhome Chat' started by gail, Feb 22, 2012.

  1. gail

    gail Read Only Funster

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    Hi all, daughter has catering unit, 50 ltr water tank on board the fill hole at the top is quite inaccessible, about 4inch gap how can she successfully completely drain this tank. One outlet feeds the urn and another the geyser hot water tap, even when she has drained those as much as possible there is still about 2" left in the bottom of the water tank. Any ideas would be greatly appreciated.

    Thanks in advance Gail
     
  2. TheBig1

    TheBig1 Funster Life Member

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    use a syphon pump with a hose on the end pushed in through the filler. Just make sure the hose is into the lowest part of the tank. You can buy cheap plastic ones on ebay for under £5. They are sold for syphoning fuel but work equally well with water
     
  3. GJH

    GJH Funster Life Member

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    Is there an external drain tap underneath? The reason I ask is that the tank in our Autoquest had a couple of inches of water left when supposedly empty but that was all (or more or less) able to be drained off using the external drain.
     
  4. pappajohn

    pappajohn Funster Life Member

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    this was a problem with our kontiki 'cos the outlet and drain pipes were in the side of the tank.

    slow but sure......an old windscreen washer pump and a length of silicon tube pumped the last of it out.

    a washer pump should deliver around 1/2gallon a minute
     
  5. gail

    gail Read Only Funster

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    thanks to everyone

    Hi thanks to you three, gonna try the syphon pump from ebay.

    gail:thumb:
     
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