Can someone please explain...

[Drock169]

I bought a purely h2O 4 stage unit. I hooked it up under my washroom sink using a T quick connect fitting and then I used Quick connect valves to turn it on and off. I only run mine once a week, so I let it run for about 15-30 minutes before I actually use the water from it. I think this is the easiest way to set it up, so people use an ATO valve if the have it connected direct to a system.