We bought Poundland soaker hose, which is 6m long. Using some old hose pipe and connectors we run them off our water butts. You can link up the bits of soaker hose so that you can cover a larger area. All we have to do is fill up the water butts. Using hosepipes connected to the taps is banned in our town, so anything that cuts down the watering time is great! We also have them in the polys, where the water butts outside have nettle tea in them, so our tons and cues etc get fed and watered at the same time. Hubby is out now buying more of the soaker hose!