Water softener/purifier

[Rodex]

Not sure if this is the proper forum but I thought with all the folks on here maybe someone has run across this. I’ve been avoiding this pipe in my garage forever, I thought it has something to do with sprinklers but a plumber said it looks like a water softener/purifier system of tanks used to be plumbed here.

Can anyone confirm that? I might be interested in adding it back in - the water here seems pretty hard.

 

[Texas Splash]

Definitely looks like a plumbing loop installed at some point, but the connections are nothing like what I have for my water softener. Perhaps this one is a bit dated. Maybe someone else will have an idea.

 

[Rodex]

Definitely looks like a plumbing loop installed at some point, but the connections are nothing like what I have for my water softener. Perhaps this one is a bit dated. Maybe someone else will have an idea.

I received a call from Rainsoft that there was a “whole home purifier” at one point, maybe it’s brand dependent?