So today I thought I had finished my hot water setup for my van but when I decided to do a final pressure check to make sure everything was water tight the water pressure blew my water heater. It didnt just blow it anywhere, I had the water blow the gas inlet pipe off and water flow from there. The gas inlet is low pressure and hence it was not fixed with a jubilee clip but I fail to see how it has forced water from this inlet. Everything was plumbed up correctly. Any ideas???