I went down to check on the plot after lots of rain. I’d collected more than 5 litres in the buckets, so I must have lots in the butts too. A 5′ x 7′ shed in the UK will catch approximately 1882 litres from the roof per year. About 313 six-litre watering cans.
While I was there I pulled up a lot of vetch and bindweed from the corner by apple tree and cut off a huge thistle before it throws thistledown everywhere too.