R/O Alternative? - Kati Ani De-ionizers

[sphelps]

Would be better if the flow rates were higher. While it is an alternative it really doesn't appear to offer any advantage over RO. Yes no waste water but somehow I'm thinking the need for using those chemicals will out weigh the environmental effects of saving the waste water. Other than that it appears to have higher cost, more maintenance and more risk of personal and tank harm.