I have my caravan insured with Camper Care - parked up in a holiday park as I live in it full time.
Others are probably already aware of this but for those who may not be:
Hidden Gradual Damage Caused by Water
We will cover you for the cost of repairing your vehicle if it suffers
hidden gradual damage caused by water which accidentally leaks
or overflws from any of the following permanently installed in your
i. sink, toilet or shower system
ii. internal water or waste tank
iii.internal water or waste disposal pipe that flws to or
from any of the above
iv. door or window.
However the leak or overflw causing the damage:
a.must fist occur during the time that you own the vehicle, and
b.must not have been visible, noticeable, or obvious to a reasonably
prudent observer, and
c.the damage must fist be discovered during the
period of insurance.
The maximum we will pay, for any one event and in total during any one
12 month period of insurance, is $2,000, after deducting an excess of
$250. This limit includes the cost of locating the leak provided that we
accept the claim. We will not pay for repairing the leak