thanks Mayzee, our van is second hand 6 years old now, [we had an ensuite fitted ] frank can doing wiring and plumbing himself , but has no equipment for testing out here.. we are at junction to Monkey Mia now , we'll see if we can find some thing next week, in the meantime will have to go to parks, very expensive right now , heaps of people everywhere,love the free camping sites so will miss them . ps nice and warm up the top ,it's colder down towards south , were going to go Gibb river road but I get ill shaken up ! it's very rough corrugations and dusty there now ,2 weeks ago . so we turned back unfortunately. catch up later packing up now.