I was wondering if I could use the DI water from my work place? They have an industrial setup that virtually removes every thing in the water.Not sure if safe for aquarium use.
I would run a TDS test each time & see how low it is & most probably it will be fine! Do you know if they use RO also or Distilled maybe? Distilled is very pure water!
Is it a Cation tank the stripped again by a Anion tank???Mixed bed afterward??
What is the Conductivity of your pure water ??
It should be fine if the conductivity is greater than .04 uHMOUS