Storing RO/DI
- Thread starter Airborne
- Start date
seapug
Premium Member
If it's kept airtight and in the dark it should be fine for a long long time.
FYI: Unless the LFS gives it away for free, the expense of waste water from an RO unit is still less than the extra you pay buying it from a store. I'm sure they've calculated all their costs (plus a little profit) in the per gallon price of RO water they sell.
FYI: Unless the LFS gives it away for free, the expense of waste water from an RO unit is still less than the extra you pay buying it from a store. I'm sure they've calculated all their costs (plus a little profit) in the per gallon price of RO water they sell.
DC_40gallon
New member
I buy mine that way (4 - 5 gallon containers with tight fitting lids). I keep it in a closet or dark location just to add that much more protection against algae growth.
Are you looking at buying premixed salt ro/di or just ro/di and mix it at home?
I'm still buying a RO/DI unit for our apartment, too many advantages to buying from LFS.
I find the pros to be -
- Can make drinking water as well as reef water
- Take everytime you go to the LFS to buy water and put that towards the bill payoff of a quality RO/DI unit (which is only $200 on avg)
- You know when the filters are changed and the TDS of each batch
- Even though LFS tells you what salt they put in it, we all know people are pinching pennies these days, who can say that they aren't using a poor quality offbrand salt and mixing it with Instant Ocean??
I find the disadvantages to be -
- Initial $200 avg cost
- Waste water (but depending on your size of tank, it shouldn't be more than a extra shower in consumption per each batch)
- $45-55 in top of the line quality salt mix initial cost
- replacing filters every 6 months at $50 avg for everything except the membrane.
Are you looking at buying premixed salt ro/di or just ro/di and mix it at home?
I'm still buying a RO/DI unit for our apartment, too many advantages to buying from LFS.
I find the pros to be -
- Can make drinking water as well as reef water
- Take everytime you go to the LFS to buy water and put that towards the bill payoff of a quality RO/DI unit (which is only $200 on avg)
- You know when the filters are changed and the TDS of each batch
- Even though LFS tells you what salt they put in it, we all know people are pinching pennies these days, who can say that they aren't using a poor quality offbrand salt and mixing it with Instant Ocean??
I find the disadvantages to be -
- Initial $200 avg cost
- Waste water (but depending on your size of tank, it shouldn't be more than a extra shower in consumption per each batch)
- $45-55 in top of the line quality salt mix initial cost
- replacing filters every 6 months at $50 avg for everything except the membrane.
Airborne
New member
Ro/di
Ro/di
I buy all my water from the LFS. Both Scripps Ocean Water as well as RO/DI. The Scripps is natural. The LFS does not make salt water it is trucked in.
I have heard that the waste water is alot in comparison to the amount produced. So the difference between the higher water bill and the LFS is a toss up. My LFS sells RO/DI for .039 per gallon.
Ro/di
I buy all my water from the LFS. Both Scripps Ocean Water as well as RO/DI. The Scripps is natural. The LFS does not make salt water it is trucked in.
I have heard that the waste water is alot in comparison to the amount produced. So the difference between the higher water bill and the LFS is a toss up. My LFS sells RO/DI for .039 per gallon.
DC_40gallon
New member
It's usually a 3:1 or 4:1 ratio.
For me I need 5 gallons a week for a water change on my 40 gallon tank so that's 20 gallons at a 4:1 ratio weekly, so if you do some research you will find that the average shower head and water output will put out around 2-2.5 gallons of water per minute, thus a 10 minute shower consumes the same amount of water as 5 gallons of RO/DI water.
thefilterguys.biz makes a water saver unit that takes the waste water out of the membrane (the final filter) and sends it through another membrane to maximize water usage and minimize water waste.
For me I need 5 gallons a week for a water change on my 40 gallon tank so that's 20 gallons at a 4:1 ratio weekly, so if you do some research you will find that the average shower head and water output will put out around 2-2.5 gallons of water per minute, thus a 10 minute shower consumes the same amount of water as 5 gallons of RO/DI water.
thefilterguys.biz makes a water saver unit that takes the waste water out of the membrane (the final filter) and sends it through another membrane to maximize water usage and minimize water waste.
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