A really good tip for allotment drainage is, if you are on a slight slope dig a trench for the water to drain in and like my lotty neighbour dig a little trench and let her water run into it as well ;)
All I can say about my lotty neighbour is that you are a lazy pregnant dog in thinking that the easy way round having a lotty is raised beds and running your rain water on to my lotty for me a 'NO NO', I would of told her face to face but I never see her in the twelve month that I have been down there ;)
Have you been at the port again, Mr Smith?!?! ;)
I take it you don't like your lotty neighbout, Mr Smith ??? ??? ??? Perhaps she's been busy looking after her new-born puppies :o :o :o :o :o :o :o