newtoreef December 9, 2012 Share December 9, 2012 I just got the RO/DI system by Bulk reef supply and I am a little confused because I am producing more waste water and RO/DI water is that normal?? or I am doing something wrong.? I thought this would help me, first reduce my trips to a LFS and Second save some money, etc.. but with all this waste water I am having here second thoughts... I might be doing something wrong... any help? Link to comment Share on other sites More sharing options...
jimlin December 9, 2012 Share December 9, 2012 iget more waste than ro di. that is normal. Link to comment Share on other sites More sharing options...
JeremyS December 9, 2012 Share December 9, 2012 RO/DI units all generate more waste then usable water. Usually 2 gallons are wasted for every gallon purified. Water temp can effect this...you waste more with cold water then you would if the input water was closer to 75ish degrees. The waste water can be used though, it's still better than tap water to drink, water plants, or even fill the washer with. Link to comment Share on other sites More sharing options...
newtoreef December 9, 2012 Author Share December 9, 2012 I just measured and I got about 2 gallons of Ro/di and 7 gallons of waste... What a waste I guess i can use to do some laundry... is this proportion what you get also? Link to comment Share on other sites More sharing options...
Rosco's Reefs December 9, 2012 Share December 9, 2012 I was researching how to get my dad burn canisters off and ran up on this: http://reefcollege.com/reef-aquarium-forum/rodi-info-thread-(sticky-if-possible) He quotes here 4 parts waste to one part clean. I thought it a little lower, but not much. Link to comment Share on other sites More sharing options...
newtoreef December 9, 2012 Author Share December 9, 2012 RO/DI units all generate more waste then usable water. Usually 2 gallons are wasted for every gallon purified. Water temp can effect this...you waste more with cold water then you would if the input water was closer to 75ish degrees. The waste water can be used though, it's still better than tap water to drink, water plants, or even fill the washer with. Ok I didn't know I could increase the water temperature I thought I need to use cold only... I will increase the temperature to save more water.. Link to comment Share on other sites More sharing options...
Mr salt December 9, 2012 Share December 9, 2012 How can you raise the temp? Sent from my iPhone using Tapatalk Link to comment Share on other sites More sharing options...
newtoreef December 9, 2012 Author Share December 9, 2012 How can you raise the temp? Sent from my iPhone using Tapatalk tap water just turn the hadle to warm water.. however the amount of waste water still the same didn't reduce as much Link to comment Share on other sites More sharing options...
Mr salt December 9, 2012 Share December 9, 2012 Thanks. I guess, It would be better to use it for laundry then wasted down the drain. Sent from my iPhone using Tapatalk Link to comment Share on other sites More sharing options...
smallreef December 9, 2012 Share December 9, 2012 No no no...do not run warm water through your RODI...unless you only have CPVC and an instant water heater ....mosy tanked heaters and water lines leach lead ....that's why your not even supposed to drink warm water...and you should let the warm water run for a few minutes before using it... I water my plants with my waste water...and my lawn Link to comment Share on other sites More sharing options...
AlanM December 9, 2012 Share December 9, 2012 I have the same unit. I'm also getting about 4 to 1. Nature of the thing. If you want you can put the waste water into your clothes washer. You can increase the temp of the incoming water by getting a long coil of tube for input to the RO/DI and dropping it into a bucket full of water with an old aquarium heater keeping the water at 80 or so. Then you can even use the waste water from the RO/DI to rinse out the bucket so it doesn't get gross. Someone here suggested this scheme to me, and it's working great. I'm not convinced that any house built since the 70s has significant lead and heavy metals in the hot water output that the RO/DI can't remove. If it's coming out at 0 TDS, it's 0, no matter what went in, I'd think. Water heaters are also usually glass lined, at this point. Maybe it's the contribution of the sacrificial anode to the water that people worry about? Link to comment Share on other sites More sharing options...
smallreef December 9, 2012 Share December 9, 2012 Its not the fact of how its lined but how long the water sits there.... Link to comment Share on other sites More sharing options...
taiscici December 9, 2012 Share December 9, 2012 (edited) You can get an upgrade kit and cut down 50% waste water, also increase 150gpd output. Edited December 9, 2012 by taiscici Link to comment Share on other sites More sharing options...
Origami December 9, 2012 Share December 9, 2012 No no no...do not run warm water through your RODI...unless you only have CPVC and an instant water heater ....mosy tanked heaters and water lines leach lead ....that's why your not even supposed to drink warm water...and you should let the warm water run for a few minutes before using it... Good advice. Heed it. There's just more junk in water that's gone through your water heater. The efficiency that you're seeing is typical. It's part of the price of getting good water. Check your water bill before you think this still isn't a good deal. I doubt that you'll find the waste water all that expensive when you really figure it out. As for the water being better than tap, I can't say. Remember, except for what's pulled out by the carbon, the rest of the impurities are actually more concentrated in the waste water. (Sent from my phone) Link to comment Share on other sites More sharing options...
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