I think we’ve all had the problem. You get up in the morning and decide to have a shower before you get ready for work, but when you turn on the shower the water is little more than a splutter or trickle, and, frustrated, you abandon the idea. Or maybe you’ve come in from work and decided to take a relaxing bath, but found the taps are refusing to give you an egg cup full of hot water, let alone a tub full. Yes, low water pressure is an annoying problem that can affect many of us, particular during times when water usage is high. But now there is a…