Feeling gravity's pull

MJC came up with another brilliant idea for our water supply logistics. Get a syphon pump to fill up our water butt without trekking to and fro with watering cans from the water tank, which is a couple of plots away. Trouble is his attempts last weekend came to nothing and we decided that it was a good for nothing, cheap piece of .... However after a another bit of tinkering he did get it to work, hurray!