Can you post a pic of your aquasafe unit set up?

[Brent F]

Originally Posted by Der_Iron_Chef

Correct. That's used if you're making drinking water, I believe....but water coming out of it will have a higher TDS than water that comes directly out of the DI canister.

That's right, the top canister is remove the smell from water we get in the spring and is intended for drinking water. I have mine running through that canister since my unit is built in under the sink in the kitchen and is also used for drinking water. The TDS are still 0 - 1.