TDS in DT reading?

Discussion in 'Water Chemistry' started by ndtechie05, Apr 18, 2011.

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  1. ndtechie05

    ndtechie05 Spaghetti Worm

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    Hey all just got a TDS meter to measure my RO output with my brand new RO so far it is 001ppm...I decided to test my DT and it was 650 with a x10 in the corner so I multiplied it by 10...does that mean I should move the decimal on the 6,500 to 65? I'm confused by this whole TDS thing...my tap water measured at 125ppm

    -Brett
     
    ndtechie05, Apr 18, 2011
    ndtechie05, Apr 18, 2011
    #1

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  2. barbianj

    barbianj Hammer Head Shark

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    No, it means you shouldn't put it in the DT, lol. :p

    It's testing total dissolved solids, there's A LOT of those in the DT.
     
    barbianj, Apr 18, 2011
    barbianj, Apr 18, 2011
    #2
  3. gabbagabbawill

    gabbagabbawill Pajama Cardinal

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    yes, your DT has saltwater in it, so it will have a high TDS because of the salt mixture along with dissolved organics...

    125ppm to 1 ppm is not bad... you may want to consider running a DI on the output of your RO to bring that 1ppm down to zero...
     
    gabbagabbawill, Apr 18, 2011
    gabbagabbawill, Apr 18, 2011
    #3
  4. AZDesertRat

    AZDesertRat Giant Squid

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    You cannot test saltwater, it is way way beyond the range of the TDS meter at somewhere around 30,000+ ppm. Rinse your meter off real well with DI water so the accumulated salt does not ruin the probes.
    Most TDS meters will read between 0 and 999 TDS and some have a high range where they will read up to 9,990 by tens, still too low for NSW.
     
    AZDesertRat, Apr 20, 2011
    AZDesertRat, Apr 20, 2011
    #4