Moving to RODI
- Thread starter ipiniowa
- Start date
Bullet
New member
This is my opinion:
http://www.airwaterice.com/product/1TYPHOON
Good people to work with. I would not get their DI though. I don't know if I got a bad batch last time or what, but it did not last very long at all.
I just re-read your post...if you already have a RO...just add on a DI:
http://www.airwaterice.com/product/ADDVERTDI
http://www.airwaterice.com/product/1TYPHOON
Good people to work with. I would not get their DI though. I don't know if I got a bad batch last time or what, but it did not last very long at all.
I just re-read your post...if you already have a RO...just add on a DI:
http://www.airwaterice.com/product/ADDVERTDI
Coralfreak
Premium Member
Id give these guys a try:
http://www.thefilterguys.biz/ro_di_systems.htm
The OCEAN WAVE+ FIVE STAGE 75 GPD RO/DI @ $155 would be a good choice.
Allen
http://www.thefilterguys.biz/ro_di_systems.htm
The OCEAN WAVE+ FIVE STAGE 75 GPD RO/DI @ $155 would be a good choice.
Allen
Coralfreak
Premium Member
Hey Jerry,
No problem, glad to hear you got it. These guys are definitely right on it when it comes to shipping things out, my second order went the same as the first, ordered on a Sat, shipped out on Sun and had it on Tuesday. I also ordered some DI refills and really like the way they are individually packaged in sealed bag vs a taped up ziplock, much better method of packaging, and each is set up perfectly for one refill.
Allen
No problem, glad to hear you got it. These guys are definitely right on it when it comes to shipping things out, my second order went the same as the first, ordered on a Sat, shipped out on Sun and had it on Tuesday. I also ordered some DI refills and really like the way they are individually packaged in sealed bag vs a taped up ziplock, much better method of packaging, and each is set up perfectly for one refill.
Allen
Coralfreak
Premium Member
Hey Bob,
Just some thoughts, I am assuming you have the DM1 dual TDS meter, if so, I have personally been through three of those and have yet to see one be very accurate, JMO but I think they are junk. I have much more faith in my handheld TDS meter, the inline gave me all kinds of weird readings, the two probes read completely different in the same water etc. If you don't have a good handheld TDS meter, you may want to consider getting one. I also have a DM2 dual inline meter, it seems to be a bit more accurate, but I still use taps at a couple points and test with the handheld.
As to going through the DI resin, what are you allowing the TDS to be before changing? I wont use any water that does not read zero, not sure if this is the case for you or not. If it is and you only have one DI cartridge, you will go through it faster. This is why I have a dual DI, after the initial cost it will actually save you some $$. You can let the first DI go until it is completely used up, I let mine go until the TDS is almost the same as the water coming from the RO membrane, the second DI assures 0 TDS. Not sure this will help, but thought I would throw it out there.
Allen
Just some thoughts, I am assuming you have the DM1 dual TDS meter, if so, I have personally been through three of those and have yet to see one be very accurate, JMO but I think they are junk. I have much more faith in my handheld TDS meter, the inline gave me all kinds of weird readings, the two probes read completely different in the same water etc. If you don't have a good handheld TDS meter, you may want to consider getting one. I also have a DM2 dual inline meter, it seems to be a bit more accurate, but I still use taps at a couple points and test with the handheld.
As to going through the DI resin, what are you allowing the TDS to be before changing? I wont use any water that does not read zero, not sure if this is the case for you or not. If it is and you only have one DI cartridge, you will go through it faster. This is why I have a dual DI, after the initial cost it will actually save you some $$. You can let the first DI go until it is completely used up, I let mine go until the TDS is almost the same as the water coming from the RO membrane, the second DI assures 0 TDS. Not sure this will help, but thought I would throw it out there.
Allen
Bullet
New member
Your right. I do have that DM1. I always test with the handheld meter too. It is usually pretty close except when the DI gets any reading at all. Right now the DM1 reads 4ppm and the handheld I have reads 1ppm. I am like you. I change my DI when I start to get a reading at all. But I do need to get a duel DI...I just have not done it yet. I will add it to my list 
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Coralfreak
Premium Member
Yeah, thats somewhat the same thing I see to, my handheld has to read about 5 or so before the inline shows a 1, this is on the DM2. One of the probes on the DM1 read something like 10 after going through two brand new DIs. Its been quite a while since I used a single DI, but I was also going through them pretty quick at that time. Right now one will last about 2 months, give or take, but I am also going through about 90gallons of water a week!
jdieck
New member
Have you checked the membrane's rejection rate? Low rejection can consume DI cartridges like mad.<a href=showthread.php?s=&postid=7940219#post7940219 target=_blank>Originally posted</a> by Bullet
I just ordered some DI refill from them. I got the non-color changing kind since I have inline TDS meter. I just hope it last longer than the other stuff I have. I blew through 4 DI's in probably 6 mo's. And this is in the summer when my tank gets neglected
Rejection % = (TDSin -TDSout)/TDSin x 100
TDSin is the TDS into the membrane after the carbon filter, TDS out is the TDS output from the membrane before the DI filter.
Thanks Coralfreak for the tip on the dual DI! I was wondering about that second DI. Very clever. At first i thought it was another marketing gimmick to make us spend more money.
I just bought a RO/DI at Buckeye field supply. Didn't receive it yet so can't say much about it. It seemed to be a well balanced unit for a decent price. They also have a 38$ add-on filled DI kit I might get when mi first DI is due to be changed.
As per TDS meter, last week I wanted to get the dual inline unit but found bad reviews here so I decided to get the COM-100 instead for few dollars more.
I just bought a RO/DI at Buckeye field supply. Didn't receive it yet so can't say much about it
. It seemed to be a well balanced unit for a decent price. They also have a 38$ add-on filled DI kit I might get when mi first DI is due to be changed. As per TDS meter, last week I wanted to get the dual inline unit but found bad reviews here so I decided to get the COM-100 instead for few dollars more.
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