Sliding washroom sinks

Just a little tip for anyone with a sliding sink in the washroom. Our 9 month old Fairford has been built without a jubilee clip on the sink waste where it attaches to the sink, you can guess what has happened this weekend whilst using the van. This has resulted in a bowl full of water emptying into the cavity behind the toilet.
It's looks possible to get a clip on which I will attempt but anyone else should check before it happens to them.
I re attached the pipe which then came off again.