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I would have thought the way forward would be to try everything and inspect for damage or leaks as each system is put into use. Pick a time when you can spend a few hours in your van and be prepared harmed with lots of old towels and shallow trays incase of any leaks.

We have done a through drain off of our van for this year, and are keeping our fingers crossed that everything works when we de-winterise it ready for its service in March.

Last year despite draining off, we suffered a leak from the bathroom tap which turned out to be from not leaving the tap in the 'on' position to allow it to dry out properly, resuling in a wet carpet, and the purchase of an expensive dehumidifyer to try it out.

One way to test is to wrap some toilet tissue around the pipe under the showerroom sink and see if it becomes wet when the tap is used, as you cannot always see if its leaking in such a confined space. Likewise do the same under the kitchen sink tap, as well as checking the pipework as it runs under the seats and into the waterheater, as these are the most vunerable points which are likely to leak and cause a flood inside. The toilet Cassette can be removed and checked using clean water for any leaks, and depending on model, some caravan toilets have an expansion tube with asmall rubber bung that pops out should the pressure build up inside the rinse holding tank due to extremes of tempreture.

Julia

Just stand and stare. If the water has frozen it will have expanded and maybe something has given somewhere. When the water thaws it simply runs out of the hole so there will be evidence on the floor of the van under the pipes.

Before emptying the toilet cistern flush it a few times and see if anything drains out where it shouldn't.

If you have an inline water filter have a good look at it as it may have split so remove and fit a new one.

If you drain the toilet cistern (my drain is a small rubber pipe you get at via the cassette locker) and loads of water comes out suggesting a full tank then probably there has been no leak.

Have a good look around the taps and shower head for splits.

Once you think everything is ok - test with water but just run one tap at a time.

Phil

The base of the pump in the toilet cracked on us and i assumed it was damaged by freezing but not sure,fixed it on site in Cornwall with some Araldite borrowed from the site owner about four years ago and its been fine ever since.

Going to check ours next week,drained it all down so all should be ok(fingers and toes crossed)

If you put any water through the system i would drain it again before leaving as it could freeze up if the weather is anything like the last few years we have got some more snow to come,end of Feb when we are at Chatsworth usually.

Andy

"we have got some more snow to come,end of Feb when we are at Chatsworth usually."

It better not!!!!