Buy Rodi Water File

If you aren't ready to invest in a home system, you can purchase pre-filtered water from several sources:

Some "purified water" machines use RO, but rarely DI. Always test this water with a TDS meter; it usually isn't 0 TDS and may still contain trace minerals. Buying vs. Making: The Trade-offs Let's talk about making your own RODI (pure) water buy rodi water

Online stores like Bulk Reef Supply and Great Lakes Corals provide information and products for both buying and making pure water. If you aren't ready to invest in a