I don't want to risk flooding the inside of the van Nav , I have on onboard pump , the water would have to come in the van then back out would it not or am I missing something ?
I must admit I like Npinks idea. Do it now ! Your a long time dead !!

That's the way mine works. From the Aquarol into the van, through the pump, through the heater, through the pipes, out the shower head, all over my girlfriend, down the drain, through another pipe, out of the van, into the waste tank. Just it seems to happen faster than you can read it.  Everyone can spread it - Anyone can catch it. Stay home - the life you save can be your own!

These pumps are ideal and you only need a 12v supply, standard 15mm connector and jumbly clip, self priming, lot cheaper than a 12v pressure washer. http://www.thecaravanshop.co.uk/waterpumps...at_16.html my PC is slightly to the right of Genghis
2012 HSE SD4 In Orkney Grey now gone, best car ever.

If you go down the route of the Whale UV0814 which is possibly what you have in your Bailey, I have one in the garage that was my back up just in case, but no longer of use as the Swift I have uses the Shure-Flo.
With the type of people on eBay I can't bring myself to have to deal with them and list it, just not worth the hassle. p****d off with a Digital Keyboard Warrior

I have ordered this from Amazon , £31 cheaper than buying from sealey for the same thing  Do it now ! Your a long time dead !!

Washed the caravan today in the storage yard. Used the Sealey power wash. I took my 40ltr Aquaroll down to the site to get water, filled up the power washer (holds 17ltrs) and put some water in my big bucket. Hosed down the area of the van I was cleaning then washed and rinsed , the wee machine worked brilliantly , strong enough to clean over wines green bits but not strong enough to damage the van . I had to fill up the power wash 3 times , in total I used 60ltrs of water and a lot less hassle than going back and forward getting then throwing numerous buckets of water over the van . Do it now ! Your a long time dead !!