Mystery tapping in the middle of the night

corky1
corky1 Forum Participant Posts: 1
edited September 2015 in Caravans #1

We are on holiday in Devon in our ten year old Hymer Swing caravan. On some nights we are woken by a tapping sound like water dripping near our bed. In fact I got up to see if it was a leak. Dry as a bone. Other nights there is nothing and when the tapping
occurs, which is regular, it gradually subsides after about half an hour. I am guessing that it is our truma ultrastore tank contracting after switching off for the night. Does this sound feasible? If so how can I prevent this? Or, if not what else? Cheers
Michael