placement

Hi all, I'm installing a water softener in my home, which is a new build. I'm having trouble planning out where to put the softener and how to run the plumbing. The line that needs to be sent to the softener is the middle line in the picture. I'm not sure if I should try to go around the lines...

What is the best placement for a smoke/CO detector in a bedroom? Ideally I would like the center of the room, however, we have a ceiling fan that also uses CFL bulbs in each of the bedrooms. All three doors for the bedrooms on the level are within four feet of each other. I have a smoke/CO...