Driving with "full" water tank ?

Thanks for all of the quick replies.

The motorhome, a new Hymer, has about 650kg payload so maximum weight is not my primary concern, I was more concerned about not overstressing the water tank by driving whilst it was full. I am probably being a bit overcautious here and maybe the translated manual was confusing a recommendation with a requirement with regard to the 20L "limit".

which model do you have?

a 650kg payload is the result of either a heavy chassis/MTPLM (4250kg) or a very light van on a 3500kg chassis....one of the new small 'Van' models perhaps.....?

either way, forget all about manuals and dumping water....if ypu have the payload and 'want' to carry plenty of water, then do so.

the 20kg of water in the Hymer manual is for vans with a smaller payload, where dumping most of the water prior to travelling will maintain a higher payload.

the tanks themselves (netween your floors) will be irregular cubiods.....ie lots of cubic sections merged together to give a large capacity but without any sloshing movements...

ours are very similar, makes no difference to handling, nor do they ever slosh.....this is the preserve of the external, underslung rectangular tanks seen on many uk vans.....Both our. boleros had them..

It's always useful to carry some water in case you stop in a layby for a cup of tea.

It's always useful to carry some water in case you stop in a layby for a cup of tea.

no flies.....as they say, Malc

Thanks for all of the quick replies.

The motorhome, a new Hymer, has about 650kg payload so maximum weight is not my primary concern, I was more concerned about not overstressing the water tank by driving whilst it was full. I am probably being a bit overcautious here and maybe the translated manual was confusing a recommendation with a requirement with regard to the 20L "limit".

which model do you have?

a 650kg payload is the result of either a heavy chassis/MTPLM (4250kg) or a very light van on a 3500kg chassis....one of the new small 'Van' models perhaps.....?

either way, forget all about manuals and dumping water....if ypu have the payload and 'want' to carry plenty of water, then do so.

the 20kg of water in the Hymer manual is for vans with a smaller payload, where dumping most of the water prior to travelling will maintain a higher payload.

the tanks themselves (netween your floors) will be irregular cubiods.....ie lots of cubic sections merged together to give a large capacity but without any sloshing movements...

ours are very similar, makes no difference to handling, nor do they ever slosh.....this is the preserve of the external, underslung rectangular tanks seen on many uk vans.....Both our. boleros had them..

It is a B Class DL444.

It would seem that the 20L in the manual is a recommendation rather than a limit.

Thanks for all the replies.

ah, we looked very closely at one last week.....for when we downsize....to a slimmer/lighter van....

Yep when we go back to motorhoming ,we fancy a hymer , but probably a short A class type :) cheers mrs bc 

The only problem with carrying a full Aquaroll of water is that it can be very heavy to lift to get it in and out of the car or caravan. We tend to partially fill it making it easier to lift but at the risk that you can run out of water if you use too much on your journey.

The only problem with carrying a full Aquaroll of water is that it can be very heavy to lift to get it in and out of the car or caravan. We tend to partially fill it making it easier to lift but at the risk that you can run out of water if you use too much on your journey.

i think we are talking about full MH tanks, Malc....

im sure no one would be advocating travelling with a full Aquaroll bouncing about inside a caravan....not a good idea.

The only problem with carrying a full Aquaroll of water is that it can be very heavy to lift to get it in and out of the car or caravan. We tend to partially fill it making it easier to lift but at the risk that you can run out of water if you use too much on your journey.

i think we are talking about full MH tanks, Malc....

im sure no one would be advocating travelling with a full Aquaroll bouncing about inside a caravan....not a good idea.

When I wild camped with a caravan the full aquaroll went in the car boot and certainly would not fancy it in the caravan

I have plenty of payload but rarely travel with full water tanks ( I have two holding a total of 300 litres) unless I know water might be difficult to obtain. Why carry extra weight if you don't have to, all it does is increase fuel consumption.

peedee