I have been seriously thinking of switching to this type unit over my RO unit. From the testing that I have personally done on my city water source have come up quite acceptable. 0 phosphates,0 N03, less than .5mg/L Silicates. The silicates are really my only concern.(of coarse chlorine).Will this unit (Kati Ani) take out silicates and any possible phosphates. Your input would be appreciated.