Holiday Watering

Hi. I hope this post is in the correct section (moderators please move it if you think there is a more suitable home). Recently I took on a large allotment and was wondering if anyone could give me any ideas for how to keep plants watered when I go on holiday. Unfortunately, hosepipes are banned on site even if attached to water butts which is unfortunate, as I have an irrigation system from when I had a larger garden. Also, I don't know anyone locally who would be able to water for me and working shifts, it'd be difficult for me to pay someone back in kind.

Thanks Fairy Plotmother.

My late father used to place a bucket next to his cucumber plants in pots, he would fill the bucket with water and place an old sock into the water and draped over the cucumber compost, the water would wick over a few days and keep things ticking over nicely, Dave

I was away for the whole of August last year.  I made sure I'd prepared the beds with lots of compost and mulched with mushroom compost, seaweed and grass clippings.  I also watered by giving everything a really good watering but not very often, so the theory goes, the plants send roots down.

 I also tried to plant stuff that wasn't going to need tender loving care in August or lots of watering.  Overall it worked quite well...

Also asked friends to go up and pick as that was more my worth that if stuff wasn't picked it would go to seed and stop producing.