smell olike gas in caravan

paul jan
paul jan Forum Participant Posts: 1
edited May 2013 in Caravans #1

Hi I am new to this and have a caravan which after standing in storage for a while has a smell which I though was gas, I removed the cyclinder and vented the system but the van still smells the same after having been closed up and standing for a while. I
have had water through the system down through the drains to flush these but seems the same,. There is no damp in the caravan. we have check for rotten food or dead beasts but found nothing. Any ideas or has anyone had this before?