Fresh Water Fill Overflow (11 Viewers)

[Bidornis]

When filling the fresh water tank, is it usual for water to overflow from the tank "under the MH" or should it come out at the filler point.

I ask as after renting a couple of MH we are looking to buy.
From rental very limited rental experience filling with water and observation of others the water overflows from the filler point.
We looked at a swift last week and, I may be being over cautious, but after initial inspection and test drive I asked to fill the fresh water and
waste to check for leaks. While filling nothing leaked out of either but when "full" the fresh water overflowed under the van which was
unexpected to me, hence the question now.
The owner said they all do that??

 

[FrankNicklin]

Ours does have an overflow out under the MH but that said if the flow in to the filling point is too fast it will blow back through the filler as well.

 

[Gellyneck]

Ours flows out from just in front of the rear wheel.
We make sure that the fill rate is less than the overflow rate.

 

[Lenny HB]

Can be either our new van it comes out under the van in centre.

 

[the1andonly]

There is also a third option, it pixxess out all over the floor if the top cap is loose or you have a design fault.

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[Next Stop]

I would probably say it's fine, ours has an overflow on the grey water tank just incase.

 

[RioRob]

It's a common problem on Auto-Trail PVCs. The air vents in the top of the underslung tanks have extension pipes which are set too low so once you fill over 75% the water siphons out of the vents. The solution is to shorten the pipes and/or turn them up so they're horizontal.

 

[U.Toadifact]

We have a Swift van conversion and the fresh water overflows from under the vehicle somewhere. I have never felt the need to find out where exactly. We once filled the fresh water to overflowing before travelling but we ended up with three quarters of a tank on arrival.

 

[Langtoftlad]

Overflowing under the van is how I know my tank is full

 

[FrankNicklin]

When I fill I always purge the taps and fill the hot water tank whislt still connected to the tap. This way you will always have a full tank when you get to your pitch otherwise you lose 10 litres to hotwater and another 10 litres or so purging the system.

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[Guigsy]

It's a common problem on Auto-Trail PVCs. The air vents in the top of the underslung tanks have extension pipes which are set too low so once you fill over 75% the water siphons out of the vents. The solution is to shorten the pipes and/or turn them up so they're horizontal.

Our Geist does this a bit. If you fill it to the top, it starts siphoning and you lose about 10 litres.

 

[HKF]