I have 2 options for a water supply. The first option (the most accessible) has tds of 290 and 8.2 ph. The second option has tds of 150 and 7.2 ph, but would have to be moved from one location to another. I will be using an rodi system. I have a 4 stage unit without a tds meter, but am thinking of upgrading. Any recommendations would be appreciated.
Well water options
- Thread starter Hocken
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Brad Miller
Valuable Member
Go with first option if you want to.
Tds of 290 will take better rodi system than a standard one.
BRS has the best selection and media available on the market.
Since pristine water supply is vital to a reef tank, don't go cheap.
I have a tds of 370-450 usually so I got the 7 stage one and it saves waste water and delivers a ton of product water with my booster Pump set at 70 psig to the unit.
You'll save on media and ro cartridge replacements too.
https://www.bulkreefsupply.com/7-stage-pro-plus-ro-di-system-bulk-reef-supply.html
Check out my build thread link at the bottom and scroll down to see my complete set up, takes a lot of room to put the 7 stage one in, and you might want to call BRS and run your selection by them, you may get away with a 6 stage and be just fine.
Tds of 290 will take better rodi system than a standard one.
BRS has the best selection and media available on the market.
Since pristine water supply is vital to a reef tank, don't go cheap.
I have a tds of 370-450 usually so I got the 7 stage one and it saves waste water and delivers a ton of product water with my booster Pump set at 70 psig to the unit.
You'll save on media and ro cartridge replacements too.
https://www.bulkreefsupply.com/7-stage-pro-plus-ro-di-system-bulk-reef-supply.html
Check out my build thread link at the bottom and scroll down to see my complete set up, takes a lot of room to put the 7 stage one in, and you might want to call BRS and run your selection by them, you may get away with a 6 stage and be just fine.
dansreef
Well-Known Member
+1 on the advice from Brad. Go with your first option. Buy a good 6+ stage RO/DI.... BRS has great packages.
The other reason is if it is more convenient then lugging jugs and mixing will be as well. If you are like some of us, the number of tanks either increase in number or water volume... and the bigger things get.... the more water needed. My RO/DI system is right next to my big systems sump but plumbed seperate.
The other reason is if it is more convenient then lugging jugs and mixing will be as well. If you are like some of us, the number of tanks either increase in number or water volume... and the bigger things get.... the more water needed. My RO/DI system is right next to my big systems sump but plumbed seperate.
OP
OP
Hocken
New Member
Thanks for the input. I’m definitely upgrading my rodi. I was just looking at them on brs website. I’ve emailed them about adding onto my existing unit to see if that’s an option. I’m worried about co2 as well. I’m thinking of running two storage containers. The first container would come straight from the well and have an aerator, then pump it from there through the rodi unit into the second container. I’m hoping this is worth the effort to save on di cartridges.
Brad Miller
Valuable Member
If you test your well water ph, that will tell you how much c02 is is your well water, there's calculations for that and @Randy Holmes-Farley can tell you how to do that.
Basically c02 isn't found in water with a ph of about 8.5 or higher, the ratio of c02 increases as the ph drops.
I would recommend testing your well water to see if a "degassing tower" (simple to make one) would be needed.
(You could also pass the ro product water through limestone chips before going into the di resin canisters)
With a BRS unit, they have separate dedicated di media bed chambers so you only replace the one that depletes instead of cheaper units that use mixed di media in a single chamber.
My stage 5 is "cation" di resin
My stage 6 is "anion" di resin ( this one depletes the quickest)
My stage 7 is "mixed with both of the di resins (this one also depletes quicker)
I may change my mixed chamber to anion, since th Is is the one that depletes way befor the cation one does.
I probably get about300 gallons (wild guess) out of my stage 6 anion camber before I need to replace the media.
Basically c02 isn't found in water with a ph of about 8.5 or higher, the ratio of c02 increases as the ph drops.
I would recommend testing your well water to see if a "degassing tower" (simple to make one) would be needed.
(You could also pass the ro product water through limestone chips before going into the di resin canisters)
With a BRS unit, they have separate dedicated di media bed chambers so you only replace the one that depletes instead of cheaper units that use mixed di media in a single chamber.
My stage 5 is "cation" di resin
My stage 6 is "anion" di resin ( this one depletes the quickest)
My stage 7 is "mixed with both of the di resins (this one also depletes quicker)
I may change my mixed chamber to anion, since th Is is the one that depletes way befor the cation one does.
I probably get about300 gallons (wild guess) out of my stage 6 anion camber before I need to replace the media.
