A Tds Meter Question

Discussion in 'Water Chemistry' started by lunatik_69, Mar 3, 2008.

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  1. jimw369

    jimw369 Fire Shrimp

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    Sorry for my stupid post! I thought we were talking about a new RO/DI unit!

    DUH!:confused:
     
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  3. sooja

    sooja Plankton

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    Feb 18, 2008
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    Great thread... motivated me to test all my water, which is great to know! Glad I had my Hagen kickin around.

    I left all the water out for about 6 hours to reach room temp, so the tests would all be fairly accurate benchmarking against one another.

    Weapon of Choice:
    [​IMG]

    Tap Water:
    [​IMG]

    RO Water: belongs to me, don't have "DI" yet.
    [​IMG]

    RO/DI Water: a buddy at work set one up in our office for his office aquarium... haha, works well for me 8)
    [​IMG]
     
  4. Notturnia

    Notturnia Bristle Worm

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    the city water is 250 tds and after the modified RO-MAN 7 stages i have 0 a nice real zero :-D
    when it grow over 2 i replace the DI resins and it it raise over 5 i change the membrane

    usually (at least here..) if you see a number in the TDS it will be Silicates.. so algae... so when i see them i change something soon.. or i will have to add some rowa in the sump..
     
  5. tinnghe

    tinnghe Purple Spiny Lobster

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    ok guys, i got the tds meter from ebay, it came just 3 days after the payment, the unit works really great, got my first measurment, ro 150, di came out to be 3 so i dont know is my ro having problem however my di corrected it.
     
  6. lunatik_69

    lunatik_69 Giant Squid

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    150 is alot, try letting it run for a few mins then test it again.
     
  7. tinnghe

    tinnghe Purple Spiny Lobster

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    is ro before or after the membrane?
     
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  9. lunatik_69

    lunatik_69 Giant Squid

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    R/O is a multi stage process of filtering water. The membrane is the "heart" of the system, so to speak.
     
  10. tinnghe

    tinnghe Purple Spiny Lobster

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    so i need to test after the membrane? i tested it before it goes in
     
  11. lunatik_69

    lunatik_69 Giant Squid

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    Im not sure what your Q is, but whenI test my R/O, I test it before it goes into the system and when it comes out. I dont test anywhere inbetween.
     
  12. Diver_1298

    Diver_1298 Eyelash Blennie

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    After the membrane and before the DI resin is the RO Number.


    Jim