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Old 10-10-2012, 05:52 PM   #1
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TDS Meter Recommendation?

I'm looking for a reliable TDS meter at a decent price. Which ones do y'all use?

Thanks!
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Old 10-10-2012, 06:14 PM   #2
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I use an inline meter from bulkreefsuply.com. Were you looking for a hand held version or inline?
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Old 10-10-2012, 06:18 PM   #3
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Originally Posted by AquaRick
I use an inline meter from bulkreefsuply.com. Were you looking for a hand held version or inline?
I'd prefer handheld probably
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Old 10-10-2012, 06:42 PM   #4
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Great little meter for the money....

Amazon.com: HM Digital TDS-EZ TDS Water Quality Tester with Auto-off Function TDS-EZ: Home Improvement
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Old 10-10-2012, 07:06 PM   #5
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Quote:
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This is exactly what I'm looking for, and a great price! Think it's accurate?
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Old 10-10-2012, 10:28 PM   #6
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This is exactly what I'm looking for, and a great price! Think it's accurate?
I have that exact one, and it's served me well. I just picked up a BRS dual inline meter for my RODI system, and it & the hand-held read dead on with each other.
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Old 10-10-2012, 10:29 PM   #7
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Quote:
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I have one, and it's served me well. I just picked up a BRS dual inline meter for my RODI system, and it & the hand-held read dead on with each other.
Awesome!! I just bought mine on Amazon, $20 shipped!
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Old 10-10-2012, 10:42 PM   #8
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Awesome!! I just bought mine on Amazon, $20 shipped!
One of those little things that no reefer should be without.

Now, when you get it, check your tap water, then compare that to your RO only before it goes through the DI canister. You should be getting about a 98% rejection rate with a clean RO membrane.... Currently my tap is 450TDS, and my RO is 8TDS (8/450=1.7% getting through or 98.3% rejection).
You can let the TDS climb a bit coming out of your membrane, I let mine go to about 95% rejection before changing it..... just remember, the higher the RO TDS, the faster it's going to chew through your DI resin.
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Old 10-10-2012, 10:53 PM   #9
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Quote:
Originally Posted by Phranque

One of those little things that no reefer should be without.

Now, when you get it, check your tap water, then compare that to your RO only before it goes through the DI canister. You should be getting about a 98% rejection rate with a clean RO membrane.... Currently my tap is 450TDS, and my RO is 8TDS (8/450=1.7% getting through or 98.3% rejection).
You can let the TDS climb a bit coming out of your membrane, I let mine go to about 95% rejection before changing it..... just remember, the higher the RO TDS, the faster it's going to chew through your DI resin.
Thanks for the info!!

This is my first ro/di, I got my unit used (said 2-3 months old) for $40, it's a 4 stage 150gpd. Hoping it still runs well!
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Old 10-15-2012, 11:28 PM   #10
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Got my meter today! My ro/di tested at 3ppm, that's still okay right?
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