I am looking into purchasing a RO/DI unit and am interested in hearing which systems you guys like and which you do not. I have read good things about Spectrapure RO/DI systems and am considering a refurbished 4-stage system from them that costs $129. Looks like to replace all filters/membranes from Spectrapure would total $91. Not sure if this is high or low.
Anybody have thoughts on RO/DI units? My tank is 29gallons, so do not need a lot of water.