>you should be able to order the unit from Blaine without any problems
>yes it is very easy to install, so no plumber needed
>it can attach directly to your cold water line and with the drinking water kit you get a holding tank for water ontap, or you can simply mount it under the sink and fill a 5gl jug for drinking water like many others do. the kit will come with a tapping tool so you have a direct feed via a pressure fitting.
>you can pickup a tee fitting at Home Depot for about $1.50 which allows one to change between RO & DI. I have a tee fitting with a on/off valve on both RO & DI, so I just open whichever valve if I need RO or DI
|