I'm considering setting up a dosing system in the basement underneath my aquarium. I currently have my ATO setup downstairs with 1/4" PTFE tubing running through the wall pulling from a kalkwasser bucket. The setup has a second 1/4" line, not currently in use. The idea is to use that line to run all other dosing. Initially that would be calcium, alkalinity and RO water, with maybe phyto and amino acids added later. There would be a peristaltic pump for each connected to the main line with a check valve. After each chemical addition, I would flush with RO water. The hope is the water flush would keep the line clean. Is this a bad idea?