I plumbed in our water softener and on the whole it works OK, but I'm wondering if there are any changes I could / should make to improve the water pressure. We have good mains pressure, and the softened water feeds everything except the kitchen cold water and an outside tap. The hot water is from a combi boiler and our shower runs from that. In the picture you can see the mains water come up in the bottom right, through a valve, then tees off, going up to the kitchen cold tap and left, through another valve, then a double check valve, then does a U-turn and into the bypass valve for the water softener. After that, there's a tee which goes up to the filtered water on the kitchen tap, and finally turns and goes out of the back of the kitchen unit and off to the rest of the house. I know that having it come out and go back on itself isn't great, it seemed the best way to add it in to the existing pipework.