Got My RO/DI

Discussion in 'Chemical Filtration / Low Nutrient Systems - LNS' started by Galibore, 27 Nov 2007.

  1. Galibore

    Galibore Retired Moderator

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    Yeehaaa, got my RO/DI unit today!!:slayer: :slayer: :slayer:

    But now I need some help. Without thinking I took the first two insert out without noting which one came first.

    So....


    can someone maybe point out to me what is each component and which of the two inserts comes first in the series pretty please.

    [​IMG]
     
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  3. Galibore

    Galibore Thread Starter Retired Moderator

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    I think C is the DI resin and I know D is the RO membrane.

    Also, what is the valve in D for?
     
  4. Shaun

    Shaun Retired Moderator

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    Don't know this unit, but D looks to be the "back wash" valve.

    And carbon goes first "I think".

    Good luck.
     
  5. Galibore

    Galibore Thread Starter Retired Moderator

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    Thanks Thalion.

    A and B I think are supposed to be sediment filter and carbon respectively. But neither of them look like the carbon I know.
     
  6. Galibore

    Galibore Thread Starter Retired Moderator

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    Here's an upclose of the valve in D

    [​IMG]
     
  7. Shaun

    Shaun Retired Moderator

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    A carbon B sediment.

    Sure valve is back wash. but not 100% to test it assemble the unit and when you turn it on the waste water flow will increase.
     
  8. Mekaeel

    Mekaeel Moderator MASA Contributor

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    the white filter should be first,thats where the inlet is and the other metal type one should be next
     
  9. Mekaeel

    Mekaeel Moderator MASA Contributor

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    oh and your valve "D" is your organic waste water
     
  10. Galibore

    Galibore Thread Starter Retired Moderator

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    Thanks a lot Thalion and Mek!

    How often does the thing need flushing?
     
  11. palmerc

    palmerc

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    WRT to your Valve D picture. The "organic wate" cartridge is just basically a flow restrictor to build up pressure for the RO.

    The part with the tap on is the membrane flush valve. I'm actually not sure how often the membrane needs to be flushed, but I do it once every two months for about 10 minutes (after making about 400-500litres of RO water)
     
  12. Rory

    Rory Admin MASA Contributor

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    Hi Gali.

    Just to confirm the white one is the "particle filter" ie. first and the silvery one is the silver sintered carbon ;) (second). Third is the RO membrane. As it's connected there you can see after the RO it goes to the DI chamber.

    As for the flush/bypass valve you can see it splits into 2 lines. The one has a pressure constrictor thingum on it which keeps the pressure in the system up. You'll see if you take the pipe off after that thing it squits a verrry fine stream of water cos there's only a very tiny hole for it to go through. Ok so, the valve thing... Occasionally you will want to just open it for a bit and let a whole lot of water run to the "waste" outlet instead of the normal amount. This causes the pressure to be released and the water to "rush" past the RO membrane (not through it) and hopefully carry away any particles that may end up clogging the membrane. I'm not sure how often you would need to do it but lots of RO units run without one. I'd say between once a week and once a month to keep it in top shape.

    Oh and as mekaeel said it's for your waste water. Now if you'd like a drink of filtered water you could also open that and you would get water with all the chlorine etc taken out but should still have all the minerals. In practive I don't think too many people actually use their RO unit's for both drinking and aquariums.
     
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  13. Galibore

    Galibore Thread Starter Retired Moderator

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    Geez guys, what would I do without you guys! Thanks a lot.

    Regarding the drinking water. It will mainly be used for tanks, but seeing as we bottle tap water and put it in the fridge as a rule, we might as well bottle some nice filtered mineral water...haha.

    Thanks for all the help guys!
     
  14. jacquesb

    jacquesb Retired Moderator

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    Hi all - my Waterboy Reefmast Plus has a seperate line that bypasses the DI unit - I think the DI unit is not too healthy for human consumption. I actually use my RO/DI filtration system for BOTH drinking water as well as my marine aquarium f/water....
     
  15. Mekaeel

    Mekaeel Moderator MASA Contributor

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    i was under the impression the the waste water is safe to drink?
     
  16. Rory

    Rory Admin MASA Contributor

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    The waste water hasn't gone through RO or DI...

    Edit: well, it's sort of been through the RO chamber but it's not RO water...
     
  17. Mekaeel

    Mekaeel Moderator MASA Contributor

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    but it is still safer than normal tap water?
     
  18. Rory

    Rory Admin MASA Contributor

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    Yes. Mainly because the chlorine has been removed by the carbon.
     
  19. Mekaeel

    Mekaeel Moderator MASA Contributor

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    thanks rory!
     
  20. Galibore

    Galibore Thread Starter Retired Moderator

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    This is how understand it.

    The waste water (non RO water) is safe to drink and is in fact good for you as it contains a high concentration of minerals. So basically it is filtered mineral water.

    The RO water is safer, but contains very little minerals.

    The DI water contains virtually nothing but water. It's safe to drink, but gives you almost no nutritional value. Hence tap water is almost better to drink as it contains minerals.
     
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