You can’t have missed the recent headlines about the impending threat of a water shortage in the UK. The Environment Agency predicts that, within 25 years, England will not have enough water to meet demand. Saving water is as important as ever. And if you’ve ever been restricted by a garden hosepipe ban, you’ll know the importance of minimising the impact of a drought on your hard-earned flowers and veggies. Sir James Bevan, the head of the EA, told the Waterwise…