Onboard Water Tank

[Jason_374561441]

Hello,

I am new to caravanning and I have some questions after an ill-fated 1st night away!!

In my Lunar 2000 carvan I have a large onboard water tank.

Once on-site a conected my 40ltr aquaroll to it and and switched on my 'external' pump buttton and the water went directly into my onbard tank. I repeated this process once again and this filled my onboard tank.

All water was then working fine, pressure and temperature was excellent.

Later in the evening I decided to top-up mu onboard tank by connecting my aquaroll and switching on the external pump again. I assumed that this would just 'top-up' my onboard tank and then stop automatically! How wrong could I be.....

It topped up the tank but then it never stopped and proceeded to flood my van and soak the floor!!

I have an 'Internal' & and an 'External' pump switch.

Does anybody have the same sort of set-up to me that could offer me some advise on how it 'should' work??

Many thanks

 

[Robtel]

Hi Jason,

I've had two vans with onboard water tank, neither have been Lunars so I don't know if they have a different set up. Both mine have been fitted with an automatic cut off system so that the scenario you describe should not happen. So either your tank does not have such a cut off or it has failed.

I was surprised to read that you used two 40 litre aquaroll's worth of water to fill the onboard tank. Offhand I think my onboard tank only holds around 36 litres.

Robert

 

[George_374396015]

my on board tank in a GEIST has an overflow pipe going through the floor, may flood the site but not the van.

geo

 

[Jennifer_374461363]

Our Sterling is similar. No auto cut out, but there is a water level gauge that shows when the tank is full, and an overflow pipe should you be slow to stop the pump.

Our tank holds 40 litres, or about 1 large Aquaroll.

 

[Jason_374561441]

I do not have a water tank gauge on my van.

I am still a little confused on how it is meant to work, but I guess the only way is to carry on experimenting at the same time as trying not to flood my new caravan!!!

Thanks for all the help

 

[steffanos]

If it's the same as our Bailey Senator, then the cut-out swich, (which is worked by a small ball-valve in the tank), is only able to switch off the pump when it is switched to fill. If it is set to 'run' (the setting for normal use), then although it will still fill the onboard tank, the pump is not turned off by the cut-out (ball valve).

 

[xtrailman]

On my 2004 bailey, the on board tank,(about 45 litres i think), only has a over flow pipe, to fill it i first have a good idea of its capacity, then in the final stages i look under the caravan to check the over flow pipe.

Never had it flood, BUT when i first bought the van i removed the front chest to inspect the tank, and see how it "worked".

Mine has a screw cap on the top, so i reasoned that if the caravan was not level they was a remote chance of the top leaking into the van, so i have sealed the cap with sealant, and never had a leak.

So check your tank top, is my advise.

 

[JohnnyV]

I have a Lunar Delta with an onboard tank - same set up use external pump from aquaroll to fill up - there is no 'cut off' on the external pump (other than running the aquaroll dry and possibly burning out the pump) but there is a series of 'test' lights (you have to press a button) that show when the onboard tank is full.

If you do overfill the tank mine would run out of the overflow pipe and onto the ground - I would have thought you would have a similar set up - I would check that the pipe is in place ?