Texas (San Antonio) water

[demodiki]

Phosphates are always a concern in tap water. The phosphates here in Round Rock tested at 1.0. Of course, the water I just got from my LFS tested at 5.0 :(

[Ram_Puppy]

I think it all comes down to quantifiable risks. There are so many things to keep track of in a reef tank, why bother adding to the list? Tap water quality fluctuates, and if memory serves, the last Edwards aquifer study of SA water I saw showed trace amounts of nitrate and phosphate (our water is still very good if a bit hard) but why mess with it? an RODI makes a QUANTIFIABLE source of water, you know whats in it. (or actually whats NOT IN IT).

Go RODI