woodsieboy said:
Thank you to everyone that has replied, I have identified that the water is coming in at the top seal, in rain and from hosepipe and watering can test. The door is bowed outwards in the middle and the locks are at either end at the top, one fixes vertically and one fixes horizontally, it seems as though the locks may be forcing the middle of the door outwards meaning the rubber seal leaves a gap between it and the door, there looks to be some adjustment on the screws holding the door to it's frame so will try that and perhaps slacken the locks off to ease the pressure on the ends of the door, my concern is that the plywood floor is already showing signs of blistering where the water has been pooling on the floor of the locker.
I understand and sympathise with your concern wodsieboy, I too would be anxious to resolve the problem.
Making the door take on a shape that would prevent water ingress may prove difficult.
I might consider (after doing what I could with the water ingress from the ill fitting door) to coat the floor of the compartment with a waterproof membrane.
Drill holes in the floor to allow any water to drain out and coat with generous amounts of waterproof membrane coating.
This product should do the job, will be slow to dry out to the point that there are no odours, but could be applied when you plan to lay up the caravan between outings.
]https://www.toolstation.com/shop/p18859?r=googleshopping&rr=marin&utm_source=googleshopping&utm_medium=feed&utm_campaign=googleshoppingfeed&gclid=EAIaIQobChMI9uHp8-7-3QIVz7_tCh11aAeKEAQYASABEgJ_HPD_BwE