Mummyhen Posted August 24, 2016 Share Posted August 24, 2016 Does anyone know how the water from overflowed fresh water tank, got inside van, got wet carpets and floor. Gauge said 3/4 full, although we know it's not realiable. Tank overflowed before, but NEVER got inside. Link to comment Share on other sites More sharing options...
Rayjsj Posted August 24, 2016 Share Posted August 24, 2016 You must have an internal leak somwhere, and the pump just kept on pumping trying to keep the pressure up. Look for the source of your leak inside the van, could just be a loose jubilee clip or a push fit joint that has seperated....it happens unfortunately. Just re-read your post, are you saying this happened when you were filling the tank ? External overflows should have stopped water backing up into the van. Again..check internal pipework in case a joint has been forced apart by mains water pressure.. Link to comment Share on other sites More sharing options...
aandy Posted August 24, 2016 Share Posted August 24, 2016 Difficult to offer any useful suggestion without knowing what van you have and where the tank is located, but if it is an overflow, rather than something like a pipe union coming adrift, the first thing I'd check is that the breather hasn't detached from the tank. Link to comment Share on other sites More sharing options...
Tracker Posted August 25, 2016 Share Posted August 25, 2016 The first thing to determine is whether the leak is pump driven or gravity driven and that should be easy enough to discover just by listening. I presume that you have looked and found nothing so why not start where the carpet is wettest, or feshly wet and let us know the location. Is it an inboard or outboard tank as it is not unknown for tanks to split and leak part way down out of sight. Link to comment Share on other sites More sharing options...
tonyishuk Posted August 25, 2016 Share Posted August 25, 2016 It would help others to offer advice if we knew the conversion of the Motorhomes. Some older Rapidos chaffed on the metal fittings at the base of the tank and split the plastic. The cause, it was said by some, that travelling with water in the tank partially filled caused the tank to move as the water sloshed about. Either the tank should be very nearly empty, or full. The latter making the tank so heavy it could not move. Hopefully not your conversion. Rgds Link to comment Share on other sites More sharing options...
Alanb Posted August 25, 2016 Share Posted August 25, 2016 Our first motorhome was Pilote R390. This vehicle had an inboard water tank, and vent pipe. The vent pipe was concealed inside a vertical wooden cable cover, and terminated well above the top of the tank. Although we never found water on the floor, I did find water stain marks inside the cable cover.. Is it possible that a similar vent pipe exists, and that a surge created by over-filling has forced water up the vent pipe? Link to comment Share on other sites More sharing options...
Derek Uzzell Posted August 26, 2016 Share Posted August 26, 2016 There’s little point theorising until it is known what an “overflowed fresh water tank” actually describes. When a motorhome’s fresh-water tank is being filled, the tank should be able to ‘overflow’ through the filling-point and/or through a breather-vent towards the top of the tank. Once the tank is full some overflowing may well occur for a while when the motorhome is being driven, but (obviously) water should not leak into the vehicle’s interior. More information from Donna needed... Link to comment Share on other sites More sharing options...
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