Are you a member of The Caravan Club?
If you are go on line and go to the Technical Information Sect (Members Only) and you will find a 28Kb PDF that you can download giving advice on techniques and suitable products
cledlyn
June 2009
Automatic Answer
We may have found other answers which could help you.
howtomendit.com for free repair help, information and advice.
Try fixfault.com to fix caravans/motorhomes.