burning2nd
Well-known member
it says calibrate with NaCI on the back of my Dm2 tds meter..
Lost in the world of RODI and TDS
- Thread starter twilliard
- Start date
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DonW
R.I.P.
burning2nd
Well-known member
right on its 1 now l
sodium chloride eh? OK ill just run to the store and grab that in the chemistry section....
any idea on how to calibrate a Tds meter? or anywhere to read up on that
sodium chloride eh? OK ill just run to the store and grab that in the chemistry section....
any idea on how to calibrate a Tds meter? or anywhere to read up on that
DonW
R.I.P.
What meter I forgot which one your using. If its a HM you can get the fluid from their website i'm sure. Check out tdsmeters.com youll need NaCl calibration fluid.
Don
twilliard
What next?
Sorry for the delay. Its an HM meter. Thanks Don for the input. I figured this would end up being just our drinking water.
I have 40-60 PSI. I am on a well serving 5 other homes. I am looking into a booster pump setup also.
Also I will be installing a softer so that means I dont need DI right? Its the same thing but for the whole house. My water hardness is 11.1
I have 40-60 PSI. I am on a well serving 5 other homes. I am looking into a booster pump setup also.
Also I will be installing a softer so that means I dont need DI right? Its the same thing but for the whole house. My water hardness is 11.1
burning2nd
Well-known member
doesnt have a name, that i can see.
just said Duel Tds meter 2 on the bottem right corrner
sorry dont mean to hijack
just said Duel Tds meter 2 on the bottem right corrner
sorry dont mean to hijack
chris&barb
Reef-Geeks
your still going to need a DI
burning2nd: here's a link to Randy's Homemade Calibration Solution: http://www.reefkeeping.com/issues/2004-06/rhf/index.php
I've used Randy's DIY and compared vs. Pinpoint 53.0mS calibration solution, and it works just as well (assuming you measure correctly).
Here's a link to the pinpoint solution: http://www.premiumaquatics.com/Merc...ROD&Product_Code=PIN-SAL-FLUID&Category_Code=
Lastly, here's a link to a long RC thread discussing using Randy's DIY solution and the Pinpoint solution: http://www.reefcentral.com/forums/showthread.php?threadid=953605
hth,
rob
I've used Randy's DIY and compared vs. Pinpoint 53.0mS calibration solution, and it works just as well (assuming you measure correctly).
Here's a link to the pinpoint solution: http://www.premiumaquatics.com/Merc...ROD&Product_Code=PIN-SAL-FLUID&Category_Code=
Lastly, here's a link to a long RC thread discussing using Randy's DIY solution and the Pinpoint solution: http://www.reefcentral.com/forums/showthread.php?threadid=953605
hth,
rob
DonW
R.I.P.
burning2nd
Well-known member
ya but were talking about Tds meters, not refracometers
Slickdonkey
Drink me
Can you explain why? Also what's the difference between the vertical and horizontal units?
Don, I'd also appreciate it if you could explain to us what's in all those canisters in that picture and how the water flows through. That's a lot of stuff you've got there. Or maybe you already have this documented in one of your design threads?
burning2nd
Well-known member
simple the more the marry'r
he is my setup not as cool as dons but it gets the job done.
i really hate to say this but "if i were you" i would go check out thefilterguys.biz
save your self time and money by doing things right the first time...
he is my setup not as cool as dons but it gets the job done.
i really hate to say this but "if i were you" i would go check out thefilterguys.biz
save your self time and money by doing things right the first time...
DonW
R.I.P.
First look a the the flow of the water through the horizontal cartrige. You get water channels, Its pushed straight throught the center of the media vs a vertical where the water is spread evenly. If youve ever seen a clear one its easy to see as the media changes color. Mine came with a clear one from the factory.
What are all mine. Sediment, Sediment, Carbon block, GAC, GAC, 75gpd memebrane, 75gpd membrane (not in old pic), Di, Di, GAC. Flow is in that order.
Don
Slickdonkey
Drink me
Ok, so by that logic I should have ten of them
Is the last GAC just for drinking water? I would think the TDS should already be zero at this point. Also why two GAC's after the carbon block?
DonW
R.I.P.
Yes for drinking water drinking water.
Why two GAC's. Gac removes chloramine more efficiently than a carbon block and carbon blocks plug up then channel to the unplugged areas. Carbon blocks do not remove 100% of the chloramine. The additional Gacs insure the life of the membranes. Any chlormine will drasticly shorten the life of the membrane. Gac refills are much cheaper than new membranes especially multipal membranes.
Don
Slickdonkey
Drink me
Ok that's good to know. How do you know when it's time to refill the GAC's?
Scooterman
Well-known member
Don would it be better to put the GAC before the carbon block?
DonW
R.I.P.
The first three filter I use pressure to determine wether or not to replace them. I have a gauge on the incomming and before the membranes.
For the GAC I have sample tap between the two. I test the water for chloramines monthly. If there is any then I move the second to the first and replace the second. With the di, when the second just starts to change color I move it to the first and replace the second.
Scooter the carbon block is also a final sediment filer so I just leave it as is.
Don
scytale
Caladanman
A word of caution: you may want to remove your DI cartridge before you start drinking from it......It's still under debate, but some scientists believe that drinking ro/DI water can be harmful to your health!
(Our bodies receive a portion of their daliy mineral intake by drinking water, but drinking de-mineralized/DI water doesn't add any minerals to your body, and it could possilby pull minerals OUT OF your body!!)
Like I said, still hotly debated but here's a World Health Org paper which outlines some of the concerns about drinking ro/DI water:
http://www.who.int/water_sanitation_health/dwq/nutdemineralized.pdf
Most agree that RO filtering is good--but DI filtering might make the water "too pure" for drinking... (as weird as that sounds!)
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