Spelter September 7, 2012 Share September 7, 2012 I've just got my RO/DI unit running. I've never had one before and its produced about 5 gallons of waste water and has not even filled up up the DI resin cartridge. So i shut it off. Is this normal in the beginning? I purchased it used from another member and it had not been used in a few years, is it possible there is a problem with the membrane? Its an AWI typhoon III, just replaced all the filters, added pressure gauge (possibly in wrong location, where does this go?) and TDS meter. Link to comment Share on other sites More sharing options...
steveoutlaw September 7, 2012 Share September 7, 2012 Mine produces about 5 gallons of waste water for every gallon of water. I think the ration gets better the higher your pressure is. Link to comment Share on other sites More sharing options...
Origami September 7, 2012 Share September 7, 2012 Are you getting any RO/DI water at all out of it? If not, and you're getting only waste water, it sounds like RO membrane may have dried out. If this happened, then you'll have to replace the membrane. They cannot be rehydrated at home. Also, check to make sure that the membrane is properly and fully seated in the housing. If it's not, water may be bypassing and exiting the waste water side. Link to comment Share on other sites More sharing options...
Spelter September 7, 2012 Author Share September 7, 2012 Are you getting any RO/DI water at all out of it? If not, and you're getting only waste water, it sounds like RO membrane may have dried out. If this happened, then you'll have to replace the membrane. They cannot be rehydrated at home. Also, check to make sure that the membrane is properly and fully seated in the housing. If it's not, water may be bypassing and exiting the waste water side. I have gotten some water. The Di resin is soaking it all up, non has accumulated in the cartridge and none has gone into my product water reservoir. So not very much. I will check to make sure the membrane is seated properly when I get home. Link to comment Share on other sites More sharing options...
smallreef September 7, 2012 Share September 7, 2012 Steve and I are about the same... i get 4 gallons of waste water for every gallon of RODI....also the first few hours of mine I ran the bypass for the DI and had an hours worth of waste and then turned the bypass off and ran for another hour and threw all that out...as its TDS was still 23 after that all I was getting was Zeros... Link to comment Share on other sites More sharing options...
steveoutlaw September 7, 2012 Share September 7, 2012 When you say that none has accumulated in the cartridge.......what do you mean? Are you sure that it's set up properly? The DI chamber should be the last one it goes through. Link to comment Share on other sites More sharing options...
Big Country September 10, 2012 Share September 10, 2012 The water level will be low in the DI Resin cartridge, it will not fill it up like the other cartridges Link to comment Share on other sites More sharing options...
Origami September 10, 2012 Share September 10, 2012 The water level will be low in the DI Resin cartridge, it will not fill it up like the other cartridges From post #4, it sounded like he wasn't getting anything out - not just air in the DI stage. Spelter, did you ever get to the bottom of this? Did you try running the unit before changing the filters out and adding the new components? If so, was there any production at all? If there was, the RO membrane is not dried out and there is probably an error in how it's been re-configured. Can you take pictures of the unit from several angles so we can see how it's wired now? Link to comment Share on other sites More sharing options...
Spelter September 11, 2012 Author Share September 11, 2012 Yes, I will take pictures of the unit tonight and post them. I ran the unit last night for 3 hrs and got less than 500mL of product water. I got about 12 gallons of waste water. Right now water comes in from my supply line, goes through a pressure gauge (reads zero) and into the unit. ( I have extremely high water pressure other places in the house, we have a restriction value installed coming off the main) Flow goes into sediment filter, then 5um carbon, then 1um carbon, then into tds In meter then into RO membrane. (I watched the ordered they filled up the first time) Now water trickles (< 1mL a minute) into the last DI resin cartridge, the entire resin is now wet, and there is only about 0.5" of water in the cartridge. Very little comes out of product line, TDS Out says zero (the line is not full though) p.s. I flooded my basement for the first time, forgot I was measuring waste water output and it overflowed the container alot. Bummer Link to comment Share on other sites More sharing options...
smallreef September 11, 2012 Share September 11, 2012 Hhrrmmm what is your TDS at point of origin? Wonder if you just have really really bad water? Link to comment Share on other sites More sharing options...
L8 2 RISE September 11, 2012 Share September 11, 2012 Are you sure the pressure gauge is set up in the right direction and is on the incoming line? It shouldn't read zero. Have you checked all the valves to make sure the ones that are on should be on and the ones that are off should be off? You could have the valves switched so that you're running a fast flush or a DI bypass or something and therefore no product water is being produced. When you say you replaced all membranes, does that include the RO membrane? Link to comment Share on other sites More sharing options...
Origami September 11, 2012 Share September 11, 2012 Looking for pictures from a lot of angles and a few close ups, too. That should help us understand if it's connected up wrong. Link to comment Share on other sites More sharing options...
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