I recently purchased a new watener softener and have been trying to install it. This is my first plumbing experience. my house in from 2003 and I feel like many DIYers worked on this plumbing. as you can see copper pipes are all different diameters. I tried to use a flex hose from shark altough the 1 inch copper pipe from the house is too short and does not connect to the teeth of the flex hose. as a result is was leaking everywhere when i turned the water back on (black tape in the first picture, temporary of course). I took it back to square one and I figured I should cut the pipe and solder a new 1inch copper pipe and connect the flex hose to the new pipe. Good idea or any advice? I also need guidance on where to cut and solder the new copper 1 inch pipe (second picture). anything helps! thanks a lot