Storing RO water for top off

jazzy_n_fancy · 06/16/2018, 06:44 AM

Hello everybody! I'm just wondering how long is it good for in a jug? Does it need to be circulating? Should I test anything first?... anything else I'm not thinking of?
Thanks!

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AlSimmons · 06/16/2018, 09:35 AM

I usually store my RO/DI water in a 5 gallon bucket with a lid for 7-10 days sometimes before I use it. No circulation, no heater no problem. I'm sure other people have gone much longer than this without any issues too.

hkgar · 06/16/2018, 10:01 AM

Mine is stored in a 32 gallon Brute container.

I hope you are using RO/DI water and not just RO?

thegrun · 06/16/2018, 10:19 AM

As long as you keep it in a sealed food grade container it can be stored indefinitely without heat or water movement. Same for saltwater unless your salt mix contains organics.

jazzy_n_fancy · 06/16/2018, 10:35 AM

Yes... I mean ro/di.. sorry I'm new

Thanks everyone.. that helps a lot. I'm keeping it in an old 2g sealed jug I got from petco once for saltwater (I know I know.. I only did it once)

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Uncle99 · 06/16/2018, 05:56 PM

Keep in mind that as you store RODI water TDS will increase over time.
Example, day 1 TDS 0-2 ppm, day 7 TDS 7-10, end of week, TDS 25-27. These are the test results from my brute container.

In addition, after mixing salt, precipitation, while small, will start.

I make just enough RODI for a week, I make, mix and use, all of it within 48 hours.

I rinse both buckets and turn upside down to dry.

Over 6 months now, made a huge improvement in my DT. No algae, no cyno, no scrubbing and sand stays white.

06/16/2018, 06:44 AM	#1
jazzy_n_fancy Registered Member Join Date: Apr 2018 Posts: 17	Storing RO water for top off Hello everybody! I'm just wondering how long is it good for in a jug? Does it need to be circulating? Should I test anything first?... anything else I'm not thinking of? Thanks! Sent from my SM-N950U using Tapatalk

06/16/2018, 09:35 AM	#2
AlSimmons Registered Member Join Date: Jul 2016 Location: California Posts: 2,482	I usually store my RO/DI water in a 5 gallon bucket with a lid for 7-10 days sometimes before I use it. No circulation, no heater no problem. I'm sure other people have gone much longer than this without any issues too. Last edited by AlSimmons; 06/16/2018 at 10:35 AM.

06/16/2018, 10:01 AM	#3
hkgar Registered Member Join Date: Oct 2002 Location: Dewitt MI Posts: 5,051	Mine is stored in a 32 gallon Brute container. I hope you are using RO/DI water and not just RO? __________________ Gary 180 gallon, 40 gallon sump, 3 250 W MH + 4 80W ATI T5's, MTC MVX 36 Skimmer, Apex controller Aquamaxx T-3 CaRx Current Tank Info: A 2 Barred Rabbitfish, Red Head Salon, Yellow/Purple, McMaster Fairy, Possum, 2 Leopard Wrasses, Kole, & Atlantic Blue Tangs, 2 Percula Clown, 3 PJ and 1 Banggai Cardinalfish , Swallowtail, Bellus and Coral Beauty Angels

06/16/2018, 10:19 AM	#4
thegrun Registered Member Join Date: Dec 2008 Location: Garden Grove, Ca Posts: 17,023	As long as you keep it in a sealed food grade container it can be stored indefinitely without heat or water movement. Same for saltwater unless your salt mix contains organics.

06/16/2018, 10:35 AM	#5
jazzy_n_fancy Registered Member Join Date: Apr 2018 Posts: 17	Yes... I mean ro/di.. sorry I'm new Thanks everyone.. that helps a lot. I'm keeping it in an old 2g sealed jug I got from petco once for saltwater (I know I know.. I only did it once) Sent from my SM-N950U using Tapatalk

06/16/2018, 05:56 PM	#6
Uncle99 Crab Free Zone Join Date: Sep 2017 Location: Ontario, Canada Posts: 2,906	Keep in mind that as you store RODI water TDS will increase over time. Example, day 1 TDS 0-2 ppm, day 7 TDS 7-10, end of week, TDS 25-27. These are the test results from my brute container. In addition, after mixing salt, precipitation, while small, will start. I make just enough RODI for a week, I make, mix and use, all of it within 48 hours. I rinse both buckets and turn upside down to dry. Over 6 months now, made a huge improvement in my DT. No algae, no cyno, no scrubbing and sand stays white.