RO/DI Water Question

Damselino · 01-02-2007, 09:06 PM

If I only use RO water instead of RO/DI water, am I going to get a lot of algae down the road? The reason I ask is because I've been buying this type of water from the LFS. I thought it was RO/DI water but its only RO.

JFK_Jr · 01-02-2007, 10:07 PM

It's hard to say...some R/O water is better than others. Some LFS's are diligent about their R/O water quality... some are not. Have you tested the R/O water you are buying? If not... that's where I would start. You can pick up a pocket TDS meter for around $30 online.

lcstorc · 01-02-2007, 11:19 PM

Also check for phosphates and nitrates. If they are not changing their filters properly you will see them in the tests of your nsw. Regardless it is likely to be better than tap water.
If properly maintained then ro is better than tap and ro/di is better than ro.

Tom Owens · 01-03-2007, 07:56 AM

I just got my new RO/DI unit (5 stage) from the Filter Guys and did my first water change with it on Saturday.

Since then, my skimmer isn't pulling anything out. It's barely pulled enough to cover the bottom of the cup. Normally, I clean it out every 3 days as it's half full of muck.

Not sure what that means yet, but I can't help but think it's a good thing.

Regards,
Tom

PhilOlsen · 01-03-2007, 08:04 AM

Let me know how you like that filter, I was thinking about getting one.

nikki · 01-12-2007, 12:36 AM

Hi I just got my 1st ro /di unit Coralife 24 gpd 3 stage unit from Dr Foster and Smith. Hooked it up to my kitchen sink . I was wondering are most sink pipes made from copper pipes? looks like mine are; and will this have any ill effects on my newly filltered ro/di h20. I had been getting my ro/di h20 from the nearest lfs Swamp Bottom in Labenon NY about 30 mins from home Dalton MA & I hope after spending $120.00 I will have nice clean water for my reef tanks . I let the unit run for three hrs with both tubes red & blue going down the drain; now I have started collecting the water from the blue tube in my 7 gal aquatainer.
Any words of wizdom will be apreciated.
Thanks

Pro_builder · 01-12-2007, 12:40 AM

The RO unit will filter out any copper that is in the supply water.

nikki · 01-12-2007, 12:53 AM

Thank you for the quik repley

Glad to hear it I had hoped so.

01-02-2007, 09:06 PM	#1 (permalink)
Damselino Tubeworm Join Date: Sep 2006 Posts: 33 View Gallery Karma Komment	RO/DI Water Question If I only use RO water instead of RO/DI water, am I going to get a lot of algae down the road? The reason I ask is because I've been buying this type of water from the LFS. I thought it was RO/DI water but its only RO.

01-02-2007, 10:07 PM	#2 (permalink)
JFK_Jr Golden Moray Join Date: May 2006 Location: Hallandale Beach FL Posts: 2,108 View Gallery Karma Komment Add yours!	Re: RO/DI Water Question It's hard to say...some R/O water is better than others. Some LFS's are diligent about their R/O water quality... some are not. Have you tested the R/O water you are buying? If not... that's where I would start. You can pick up a pocket TDS meter for around $30 online. __________________ *JFK_Jr's 150 Gallon Starphire*

01-02-2007, 11:19 PM	#3 (permalink)
lcstorc Sunshine Reefer Join Date: Mar 2006 Location: Cocoa Fl Posts: 21,928 View Gallery Karma Komment Add yours!	Re: RO/DI Water Question Also check for phosphates and nitrates. If they are not changing their filters properly you will see them in the tests of your nsw. Regardless it is likely to be better than tap water. If properly maintained then ro is better than tap and ro/di is better than ro. __________________ Peace LYNN You can't change the past but you can change how you view it. A reef tank is like a racecar. The faster you go the harder you crash. Lynn and Franks saltwater adventure Lynn's 20g clown tank Lynn's 90g of sunshine Every 60 seconds you spend upset is a minute of happiness you'll never get back.

01-03-2007, 07:56 AM	#4 (permalink)
Tom Owens Has been struck by the ban stick Join Date: Oct 2006 Location: Atlanta, Georgia USA Posts: 119 View Gallery Karma Komment	Re: RO/DI Water Question I just got my new RO/DI unit (5 stage) from the Filter Guys and did my first water change with it on Saturday. Since then, my skimmer isn't pulling anything out. It's barely pulled enough to cover the bottom of the cup. Normally, I clean it out every 3 days as it's half full of muck. Not sure what that means yet, but I can't help but think it's a good thing. Regards, Tom

01-03-2007, 08:04 AM	#5 (permalink)
PhilOlsen Has been struck by the ban stick Join Date: Oct 2006 Location: Glendale Hts. Illinois (Chicago transplant to humor my wife) Posts: 646 View Gallery Karma Komment	Re: RO/DI Water Question Let me know how you like that filter, I was thinking about getting one.

01-12-2007, 12:36 AM	#6 (permalink)
nikki Tunicate Join Date: Jul 2006 Posts: 10 View Gallery Karma Komment	Re: RO/DI Water Question Hi I just got my 1st ro /di unit Coralife 24 gpd 3 stage unit from Dr Foster and Smith. Hooked it up to my kitchen sink . I was wondering are most sink pipes made from copper pipes? looks like mine are; and will this have any ill effects on my newly filltered ro/di h20. I had been getting my ro/di h20 from the nearest lfs Swamp Bottom in Labenon NY about 30 mins from home Dalton MA & I hope after spending $120.00 I will have nice clean water for my reef tanks . I let the unit run for three hrs with both tubes red & blue going down the drain; now I have started collecting the water from the blue tube in my 7 gal aquatainer. Any words of wizdom will be apreciated. Thanks

01-12-2007, 12:40 AM	#7 (permalink)
Pro_builder DIY Moderator Join Date: Nov 2003 Location: Oxford, Iowa Posts: 1,746 View Gallery Karma Komment	Re: RO/DI Water Question The RO unit will filter out any copper that is in the supply water. __________________ -Troy 180 gallon Reef, 3- 250 XM 15K MH Electronic ballast, 380 watts VHO Actinics, 2- 5 watt LED Moon lights, 100 gal rubbermaid sump, 75 gallon Fuge, ETSS 600 Skimmer, 4700-5400 gph pump for return, Octopus 3000 controller, Iwaki 40 RL skimmer pump, 2- 65w PC 10K fuge lights, 2 55 gallon barrels, Custom light oak stand and hood, misc pumps, extra 600 gallon rated tank size protein skimmer. Purple tang, yellow tang, pacific blue tang, 2 green chromis, 1 Sand sifting star, snails, hermit crabs, 2 mated perculas, pulsing Xenia, Anenome, mushrooms, ricordia, zoanthids, kenya tree 1 1/2" tall, misc other hitchhiker stuff. DIY is my dream... ...well OK the only way I can afford this Addiction!! Just as the light goes on in my head... ... I break the bulb!!

01-12-2007, 12:53 AM	#8 (permalink)
nikki Tunicate Join Date: Jul 2006 Posts: 10 View Gallery Karma Komment	Re: RO/DI Water Question Thank you for the quik repley Glad to hear it I had hoped so.

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