Hey guys. I have a general questions about people's RODI units. I have an AWI Typhoon III Extreme 150 system. It is supposed to be a good system, but it seems like it doesn't stay at 0tds very long. I swapped out the filters on it just a few weeks ago and have only done one water change since then. It does feed my ATO which triggers about once an hour for 30 seconds or so. I just checked my TDS and it is showing 7 already. I replaced the membrane about 4 months ago as well. Not real sure what I should do here. Do I need to scrap awi and try a different brand? Or is there something I could be doing wrong? Gotta think of something though because I don't want to have to replace filters every 6 weeks to maintain 0 TDS. Thoughts?