DI Only

michaeldaly · 11/20/2006, 11:43 AM

How many people are using a De-ionizer only, I heard that the purity that a de-ionizer produces is higher that RO but that you have to replace the de-ionizer cartridge often.

tkeracer619 · 11/20/2006, 11:55 AM

I am not sure but as the most expensive media on an RO/DI I sure wouldn't want to replace the media after one water change. Not really sure how only DI works but.......'

I wouldnt do it. Sounds to be very expensive in the long run.

I doubt DI alone would be "better" than ro. Its just a pellet, it doesnt actually filter anything out. It pulls stuff out from what I understand.

Anyways if it were better than RO why would everbody have RO/DI filters.

If they sold 10 times more media it would get cheaper so cost isn't the issue.

stereomandan · 11/20/2006, 11:56 AM

It will be extrememly expensive to go that route. The DI will strip out everything, but doesn't have near the capacity for filtering as a RO with the appropriate filters. That's why people use the RO to strip out most of the impurities and the DI to catch the rest.

Much more cost effective that way.

Dan

michaeldaly · 11/20/2006, 12:01 PM

I only have to do to-up on my 65g with purified water as I onlu use NSW for water changes, so I will not be using that much water.

Keiths_Reefs · 11/20/2006, 12:12 PM

Quote:

Originally posted by michaeldaly
I only have to do to-up on my 65g with purified water as I onlu use NSW for water changes, so I will not be using that much water.

Before I knew better I bought one of those stand along DI filters. If I recall correctly it was about $30. It did a great job of giving me pure water all the way to 10 gallons! By 15 gallons it was completely worthless. Even an inexpesive RO filter before the DI will make it last many many many times longer.

Dubbin1 · 11/20/2006, 01:29 PM

Quote:

Originally posted by michaeldaly
I only have to do to-up on my 65g with purified water as I onlu use NSW for water changes, so I will not be using that much water.

Thats still a total waste of money and you would be ahead in the long run by just getting a decent RO/DI unit. You can get a 110g per day, 6 stage unit from filterdirect on ebay for $115. You can get them even cheaper if you don't want the faucet and storage tank.

michaeldaly · 11/20/2006, 01:54 PM

Thanks for the link dubbin1

tkeracer619 · 11/20/2006, 02:05 PM

You can get a really nice RO for 130 at the following website. They are reliable, quality, and not ebay.

www.air water ice.com (without the spaces)

Keiths_Reefs · 11/20/2006, 02:45 PM

Quote:

Originally posted by tkeracer619
You can get a really nice RO for 130 at the following website. They are reliable, quality, and not ebay.

www.air water ice.com (without the spaces)

That's what I have but the unit is certainly not cheap. There were a number of threads regarding these units (like we have) vs the ebay ones a while ago and they both are capable of 0 tds water and seem to produce for approximately the same time. I personally like having high quality items but it seems the ebay ones will get the job done without a problem.

Dubbin1 · 11/20/2006, 02:57 PM

Quote:

Originally posted by Keiths_Reefs
That's what I have but the unit is certainly not cheap. There were a number of threads regarding these units (like we have) vs the ebay ones a while ago and they both are capable of 0 tds water and seem to produce for approximately the same time. I personally like having high quality items but it seems the ebay ones will get the job done without a problem.

Don't knock the filterdirect units on ebay. There is nothing cheaply made about them and are as high of quality as the more expensive units out there. I was able to go for over a year before my TDS started to go up to a number I didn't like (4). Thats with doing 2 gallon per day top offs and 15 gallon per week water changes. TDS going in is around 180, TDS from RO is 4 and TDS from DI is 0.

Keiths_Reefs · 11/20/2006, 02:59 PM

Quote:

Originally posted by Dubbin1
Don't knock the filterdirect units on ebay.

Perhaps you should re-read my post. I was saying that the ebay unit produces just as well as the others.

Dubbin1 · 11/20/2006, 03:08 PM

Go back and re-read your own post

I was referring to this remark.

Quote:

Originally posted by Keiths_Reefs
I personally like having high quality items but it seems the ebay ones will get the job done without a problem.

tkeracer619 · 11/20/2006, 03:33 PM

Wait a minute isn't ebay a stamp for quality

Filterdirect has been around for a minute but with ebay stores you never know. One day they just go poof.

11/20/2006, 11:43 AM	#1
michaeldaly Registered Member Join Date: Apr 2005 Location: Earth Posts: 2,009	DI Only How many people are using a De-ionizer only, I heard that the purity that a de-ionizer produces is higher that RO but that you have to replace the de-ionizer cartridge often.

11/20/2006, 11:55 AM	#2
tkeracer619 Registered Member Join Date: Jan 2006 Location: Westminster, CO Posts: 17,289	I am not sure but as the most expensive media on an RO/DI I sure wouldn't want to replace the media after one water change. Not really sure how only DI works but.......' I wouldnt do it. Sounds to be very expensive in the long run. I doubt DI alone would be "better" than ro. Its just a pellet, it doesnt actually filter anything out. It pulls stuff out from what I understand. Anyways if it were better than RO why would everbody have RO/DI filters. If they sold 10 times more media it would get cheaper so cost isn't the issue. __________________ Hobby Experience: 9200ish gallons, 26 skimmers, and a handful of Kent Scrapers. Current Tank: Vortech Powered 600G SPS Tank w/ 100gal frag tank & 100g Sump. RK2-RK10 Skimmer. ReefAngel. Radium 20k.

11/20/2006, 11:56 AM	#3
stereomandan Premium Member Join Date: Feb 2002 Location: Michigan Posts: 2,888	It will be extrememly expensive to go that route. The DI will strip out everything, but doesn't have near the capacity for filtering as a RO with the appropriate filters. That's why people use the RO to strip out most of the impurities and the DI to catch the rest. Much more cost effective that way. Dan __________________ 90g Tank, 75 lbs Live Rock, T5, T8 and VHO Lighting, Closed loop on Snapper Pump 1.5" Sand in main tank, DSB in 38g Sump, B-ionic Daily, Temp 79, SG 1.026 LPS, Softies Current Tank Info: 90 Gallon Reef

11/20/2006, 02:05 PM	#8
tkeracer619 Registered Member Join Date: Jan 2006 Location: Westminster, CO Posts: 17,289	You can get a really nice RO for 130 at the following website. They are reliable, quality, and not ebay. www.air water ice.com (without the spaces) __________________ Hobby Experience: 9200ish gallons, 26 skimmers, and a handful of Kent Scrapers. Current Tank: Vortech Powered 600G SPS Tank w/ 100gal frag tank & 100g Sump. RK2-RK10 Skimmer. ReefAngel. Radium 20k.

11/20/2006, 03:33 PM	#13
tkeracer619 Registered Member Join Date: Jan 2006 Location: Westminster, CO Posts: 17,289	Wait a minute isn't ebay a stamp for quality Filterdirect has been around for a minute but with ebay stores you never know. One day they just go poof. __________________ Hobby Experience: 9200ish gallons, 26 skimmers, and a handful of Kent Scrapers. Current Tank: Vortech Powered 600G SPS Tank w/ 100gal frag tank & 100g Sump. RK2-RK10 Skimmer. ReefAngel. Radium 20k.

11/20/2006, 12:01 PM	#4
michaeldaly Registered Member Join Date: Apr 2005 Location: Earth Posts: 2,009	I only have to do to-up on my 65g with purified water as I onlu use NSW for water changes, so I will not be using that much water.

11/20/2006, 01:54 PM	#7
michaeldaly Registered Member Join Date: Apr 2005 Location: Earth Posts: 2,009	Thanks for the link dubbin1