"As helpful as Andy~qwerty999 has tried to be in explaining what a soft water loop is, it's apparent that he does not know the answer."
Well, that was pretty decent of you. I mean I gave you the Reader's Digest" versaion but let me try to make it even simplier.
This was my response:
"Simply put, it is a location in the water line--before the water heater--where all water that you want to be treated has to pass through."
Your water softener should intersect the plumbing--those are the pipe things--between where your water comes into the house--that building you live in-- and all other faucets, baths, showers, dishwashers, laundry units and water heaters (I could go on but I think you are following me, right?)
Of course the actual location is impossible for me to tell you as you are not providing builder blueprints.
If you are in warm weather climate, you may have to dig a hole in your yard to meet the pipe before it comes into the house.
I cold climates a leanto may be added to your construction to house and keep the equipment warm. Occasionally the plumbing in your house may be such as to allow an indoor installation, which would typically be near the water heater.
The plumbing would look like a striaght pipe with two tees and two elbow forming a D shape in the plumbing with valves between each tee and elbow and between each tee as well. The middle valve would be your by-pass and usually stays shut when the softener is on and open when no equipment is installed.
You need one so that all your plumbing can be treated. As I said before, many slab foundation constuction plans didn't take into consideration loops for water treatment so you may have to do some major repiping.
Boy, I am not sure I can make it any planer than that. Hope that helped.
Andy Christensen, CWS-II