Can I buy some RO/DI water off anyone?

[Achilles]

Hey guys, I'm having a pain-in-the-ass time of getting rid of some excess nutrients, I have a good skimmer and a new refugium (so not very efficient yet) that are helping, but I need to make sure my make-up water is stripped clean.

Anyone willing to make me about two water cooler bottles full, that I could pay a small price for?

What about that water from safeway? thanks!