This is the illustration from the Chemilizer install manual:
(the manual is at: http://www.hydrosystemsco.com/images...n55_manual.pdf )
but this is how I'd prefer to install it to have non-softened water for gardening etc. -
Is there something with this that could make the water flow backwards through the injector?
I don't understand why they would specify installing it before the pressure switch. I haven't had a reply to emails, I might have to call them.