diffrence between drinking Ro and Marine RO water

Discussion in 'Beginner Discussions' started by Marjolein, 26 May 2009.

  1. Marjolein

    Marjolein

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    Please help me???
    Is there a diffrence between drinking RO water and Marine RO water? How do i know the diffrence?
     
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  3. Tony

    Tony

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    Marine RO water is too pure and lacks the minerals that wee need from water. I don't knwo what you mean by regular Ro water. One should actually drink the waste water from and RO unit as this contains all the minerals less the chlorine
     
  4. lIghty

    lIghty

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    I understand you Tony, but then why does "Water Oasis" sell RO for drinking? If it's the "waste" water, then it surely hasn't completed the "process" can't be sold as RO?
     
  5. Mike

    Mike Retired Moderator

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    I would imagine it is just filtered water, rather than R/O water, the easy way to check is to test the TDS if it is zero, then you can use it for our tanks, but zero tds r/o is not good to drink - it is actually harmful to us in the long term.
     
  6. nakoma

    nakoma

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    can i go slightly off topic at work i have a RO unit and i have a deionizor i was wondering if some of you can give me insight on using deionized water instead of RO i found on my manual of the deionizor it says that deionized water must not be consumed in any way and that it is not fit for drinking can anyone share some light on this i found this on a site browsing


    Deionization is an on demand process which produces water up to 10 TIMES PURER than reverse osmosis. All that is left is the "wet." The downside of deionization is its expense.
     
  7. Reef Inmate

    Reef Inmate

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    I have been drinking RO water for many years now with no ill effect. I believe that pure water (H2O) is the component our bodies need for re hydration and not minerals in the water. We do not derive nutrition from water but rather from the food we eat. If I look at bottle of mineral water and see how much of each mineral is present in solution it is so little that I feel if we had to depend on on water for our mineral intake it just wouldnt be good enough. I am no scientest or doctor so these are just my thoughts.
     
  8. lanzo

    lanzo Sponsor

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    Some of the house hold ro units has pipes that run in the membrane and bypassing the membrane to a post filter that is normaly called the water polisher that makes the water taste better, but at the same time increasing the tds(and these units doesnt have flush valves to flush the membrane, it only has a restrictor)

    Normally your household ro units tds is about 10-50ppm

    Marine ro units....all the water goes threw the basic 2 filters(5micron sediment,carbon block) and that water then directley goes threw the membrane ...from there it has the pure watercalled ro water and the watse water that some guys will ottle and drink.

    Hope this helps a bit;)
     
  9. Mike

    Mike Retired Moderator

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    I'm trying to find a link from the medical types that showed why it was harmful...bear with me, talk amoungst yourselves or something:whistling:
     
  10. Reef Maniac

    Reef Maniac MASA Contributor

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    OK, from another thread... Marjolein, you're confusing me :biggrin:

    They are the same, except for two issues:

    1. The drinking water RO filter usually has a final stage (small diameter "filter") which adds "minerals" back to the filtered water. This is not good for Marines, but it is very easy to remove this last unit, so this is not really a problem.

    2. Many drinking water RO units have a "KDF" pre-filter, instead of the "carbon block" prefilter which should be used with a marine system. The KDF filter actually removes the chlorine from the water more effectively than the carbon block, but it consists of a mixture of copper and tin (I think???) filings, both of which are pretty lethal to marine organisms. Even though the RO membrane will remove (say) 95% of this copper, the remaining 5% would increase (build up) over time in the tank, and will eventually reach a lethal level, just when your corals are really starting to do well.

    So, just replace the KDF with a carbon block, and remove the mineral supplement unit, and you should be A-OK.

    Hennie
     
  11. TheWaterboy

    TheWaterboy Sponsor

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    interesting thread......its funny how many times this can be explained it pops up again and again.
    let me see if i can break it down.
    okay a drinking water r.o.unit normally consists of the following:
    it is a 5 stage filtration / purification system......i say "filtration / purification" beacause filtration is termed as removing sediment and absorbing chemicals and purification is termed as removing everything including all minerals.

    pre-filtration:
    stage 1: 5 or 10 micron sediment filtration
    stage 2: granular activated carbon
    stage 3: 1 micron sediment or 10 micron carbon block or kdf/gac cartridge

    explanation:
    stage 1 is used to mechanically remove suspended solids
    stage 2 is used to effectivly remove chlorine, chemicals, organics etc
    stage 3 depending on which filter is used.......(1 micron- to remove ultra fine suspended particles aswell as carbon fines from previous stages thus delivering super clear water to the membrane protecting it)
    (10" carbon block- succesfully removing all chlorine while traping suspended solids thus protecting membrane from sediment aswell as definatly ensuring chlorine etc does not reach the membrane) and finaly (kdf/gac- a blend of 300g kdf which is infact copper and zinc melted together to produce a patented formula -"kdf" stands for kinetic degradation fluxion and stands for a substance that will remove heavy metals aswell as stop the growth of bacteria" this blended with gac ensures a super strong protection for the membrane as bacteria growth too destroys membranes "hence our patented flush system on the waterboy reverse osmosis systems which have now been cheaply copied by brands trying to catch up:)

    purification stage:
    the membrane......

    on a drinking water system , cheaper membranes are used that do work but unfortunatly last only about 1 year to 18 months before being absolutly shot.
    the membrane removes most minerals and sends the purified water to a storage container while the waste line exports the minerals

    the storage tank:

    usually 9 litres in size, it looks like a gas bottle but infact it is a steel housing lined with a rubber bladder / balloon inside.......this bladder leaches stuff back into the water while in storage aswell as effects the taste of the water.
    when the tap is opened on the sink the water gets delivered from the tank to the final stage .....the polishing filter (glorified compressed carbon filter) which only improves the taste of the water before comming out the tap........however the t.d.s is usually up to around 5 to 10 ppm which are usually phosphate bassed.

    advanced systems now have mineral injection cartridges which now buffer ph while sending calcium and magnesium back to the water aswell.


    marine reverse osmosis systems
    generally 3, 4 and 5 stage systems

    stage 1
    5 micron sediment filter......does as explained above

    stage 2
    silver sintered carbon block cartridge........our little secret
    silver sintered carbon absorbs chlorine and organics, while trapping sediment AND STOPPING BACTERIA GROWTH reaching the membrane.

    stage 3 - purification
    filmtech 50gpd membrane - worlds best membrane....known to last 3 years ......and in alan's case with super protection that includes every pre-filtration stage under the sun.....his filmtech membrane lasted a good 5 -6 years.
    these membranes can deliver water with a t.d.s from 0 to 10 into your system with minimal if no po4

    no storage tank

    advanced units such as the waterboy reefmaster plus
    the have stage 4
    a mixed bed de-ionising resin stage which should not be used for drinking as amines can grow in the resin
    this mixed bed resin consisting of a special formula balanced with anion and cation resin takes the r.o.water delivered from the filmtech membrane and drops the t.d.s all the way down
    to 0 - 1......ensuring the purest water possible for marine aquariums

    these units also incude our patent flush mechanism which helps flush deposits on the mebrane out to the waste via high pressure

    super advanced waterboy systems have a 5 stage setup
    stage 5
    tunze calcium carbonate filled chamber that slowly dissolves unde the low ph ro/di water after the resin chamber.
    the ph is thus buffered while calcium is absorbed and delivered to the tank at the same time .....the t.d.s generally rises to about 10 to 18 ppm but that is now 10- 18 ppm of calcium.............just what your corals were looking for


    hope this helps........any further questions.....feel free to pm me under the waterboy or marco

    and remember if you looking for a r.o.....by the original waterboy unit from accredited dealers.....not imitations that have popped up at cetain stores in the cape and jhb
    if you looking for an agent in your area....contact us

    we have heard of numerous reports of water companies buying our units and trying to rip them off........they may look the same......but you will soon learn....they certainly not

    may your t.d.s always be 0



    cool
     
    Last edited: 26 May 2009
    viper357 likes this.
  12. DragonReef

    DragonReef

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    Shees, there's some useful info.

    Marco, you can go and rub some lotion on your fingertips now :lol:
     
  13. TheWaterboy

    TheWaterboy Sponsor

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    lol....yeah.......hows it going ant?

    thought id explain it all....in detail.....lol:yeahdude:

    maybe you guys can save that post for whenever the question pops up again......i would hate to type that all out again.....:razz:


    hows the super aquascape aquarium doing?
     
  14. DragonReef

    DragonReef

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    Yip we need to sticky that info in your forum.

    My tanks been a bit neglected lately, but bouncing back. Need to come and see you for some filters. TDS has crept over 10 !
     
  15. lIghty

    lIghty

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    Wow, Thanks Marco, sure was some info that!
     
  16. TheWaterboy

    TheWaterboy Sponsor

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    thats no good dude.....0 is where we like to have it!
     
  17. Reef Maniac

    Reef Maniac MASA Contributor

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    Good one, Marco...

    quick question, how do the sediment and carbon block filters compare between various makes - is there a difference between cheap Chinese imports, and (say) those made in the USA? What do you use?

    Reason for asking, there is a person here in Bloemfontein selling the sediment filters at about R20.00 each, and carbon block filters for only R50.00. He claims to be importing them directly from China, and distributing them to various retailers throughout the country, hence his cheap prices. Sounds too good to be true...

    Hennie
     
  18. TheWaterboy

    TheWaterboy Sponsor

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    yeah for sure there are huge differnces.....
    and there are a number of these "water purification gurus" around.......as there are a number of aircon and of late generator specialists who burn down houses around town buy supplying inferior product.......
    guys who have some money, fly to china, buy whatever they can find and bring it over hoping to double / triple there money.
    bottom line.....as with anything.....there are always cheap quality items and there are top quality items.
    one can check buy first seeing if the cartridge comes from the state or china and by looking for a water quality association logo......and of course asking the supplier for there water quality accosiation certificate......"anyone can place a logo on an item".

    the differance is the the sediment cartridges will say whatever micron on the packaging.....but it is not absolut rating....therefore the actual micron of that cartridge can vary as much as 30%

    the carbon cartridges are firstly not silver sintered and secondly usually are anthricite based (anthicite is a very low grade carbon) used sometimes as a better filter media than sand in filtration lines as it can still absorb chemicals however no where near as close to malaysian coconut schell carbon.

    hope that helps

    oh yeah.......if you guys are buying units from other suppliers always ....always insist on filmtech membranes...........otherwise you seriously just putting your money in the bin......

    there an old afrikaans saying ne.........goed koop is double koop!:slayer:
     
  19. Marjolein

    Marjolein Thread Starter

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    Ok so if the TDS os 0 then it is fine? My father has one for many years. He got it from aquamatic. He paid about R5000 for it. Where can i buy a TDS testing kit?
     
  20. Marjolein

    Marjolein Thread Starter

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    Ok another Q? Why then can you buy RO water from a LFS and use it in your tank? I Have a Buyo tl550 130L tank and i dont need that much water.
     
  21. TheWaterboy

    TheWaterboy Sponsor

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    generally your lfs will have a marine r.o. unit....so yes you can buy water from your lfs.....but just always check the water quality....

    most reefers like to have there own unit as they know for sure when it was service etc etc and what water quality is going in the tank


    yip t.d.s of 0 will mean its really good.

    i doubt that the R5000.00 r.o unit your dad has will give you that t.d.s

    if its a drinking water r.o.unit....he may have been overcharged
    we sell em for R1750 without pump and R 2200 with pump.


    marine r.o.units are much cheaper as they dont have storage tanks, taps etc etc
     
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