Ok so after about 18 months with the purflow we are dropping it. We only get about two weeks out of a pack and since I use 30L a treatment we got thru 3 saks a week also. After figureing it up it will be loess time consuming to use bags and won't really use up that much more storage space.

Anyway what I am trying to figure out is how to keep the black grain line that connects directly to my plumbing. Is there some connection or some way to connect that one to the cartridge line or even using a short drain line connector.