Tap water - shocking - with pics

Discussion in 'Protein Skimmers, Mechanical Filtration' started by deadmeat2016, 19 Dec 2012.

  1. deadmeat2016

    deadmeat2016 Wouter

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    Check this out, a plumber bought along his ioniser, can you guess which is RO and which is tap water?

    DSCF0542.jpg

    DSCF0543.jpg

    DSCF0544.jpg
     
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  3. HiDeeHo

    HiDeeHo

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    Horror story II
     
  4. carlosdeandrade

    carlosdeandrade

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  5. carlosdeandrade

    carlosdeandrade

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  6. TheWaterboy

    TheWaterboy Sponsor

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    dont panic....thats a trick used by clueless people who wanna sell r.o.units.

    that trick is called electrolysis.......the shit in the water is the iron that has been pulled from the rods using electrolysis.....its not shit in the water

    the reason it works is because tap water has high t.d.s , thus conducts electricity , so electrolysis will occur.....

    r.o. water has low if any t.d.s thus little or no electrolysis occurs....which = cleaner water in the jar....

    tell plumber nice try....but that trick is for dumbies who actually dont know what they selling

    the fact he has off colour in his r.o.water...means he does not have a 0 tds
     
    Last edited: 19 Dec 2012
  7. gMAN

    gMAN with the plan

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    Nice info there Marco, a true sponsor not wanting to push your products :thumbup:
     
  8. belindamotion

    belindamotion Google Master

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    INTERESTING..!!! Thanks..something new I learned today...:thumbup:..WOW
     
  9. butcherman

    butcherman Moderator MASA Contributor

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    :lol:
     
  10. irie ivan

    irie ivan MASA Contributor

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    Or did you mean used ON clueless people by people who want to sell RO units...
     
  11. TheWaterboy

    TheWaterboy Sponsor

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    no...i meant clueless people selling r.o units.....
    the fact the guy is trying this trick is because he does not understand the principle of how a r.o.unit works.......
    hence he has to trick the client into a sale...........

    infact all he has proven with that trick.....is that tap water conducts electricity better than r.o.water

    a simple t.d.s test will show the client the water is better quality....and a taste test will prove it tastes better

    no need to diss municiple feeds.................i know this because i actually done the same 15 years back....however i used to give my clients the low down first....of what is really happening
     
    Last edited: 19 Dec 2012
  12. irie ivan

    irie ivan MASA Contributor

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    And the clueless customer would buy one....
     
  13. TheWaterboy

    TheWaterboy Sponsor

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    for sure.....would'nt you after you saw that happen infront of you with tap water and r.o.water

    you start thinking...shit...my kidneys are working through that all day long......
    the fact is...they are...but not that extreme
     
  14. irie ivan

    irie ivan MASA Contributor

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    Fortunately I aint all that clueless. I have an RO for my tank and see what my prefilters look like when I change them, yet I still drink tapwater..
    Crazy I know....
     
  15. RocketRooster

    RocketRooster

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    Drinking Joburg tapwater hasn't killed me yet.
     
  16. irie ivan

    irie ivan MASA Contributor

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    In the states it seems that tapwater is a definite source of NO3 and PO4. Has anyone actually tested their tapwater for these nutrients in SA.

    Perhaps something for a thread on its own, but it is relative.

    Did it the other day for the sake of doing something and my pH was 9.82, NO3 2ppm and my PO4 0.00, which was quite a surprise. Was rather shocked at the high pH, as I always though it would be more towards the neutral side...
     
  17. RocketRooster

    RocketRooster

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    Flouride ions, maybe?
     
  18. Albert Terego

    Albert Terego

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    According to SANS 241-1 (2011) Specification for Drinking Water the following specs apply.

    pH - 5.5 to 9.5
    TDS - <1200ppm
    Nitrate - <10ppm (as N) - this is equivalent to 44ppm (as NO3)
    No spec for phosphate

    Does anyone know what units a nitrate test kit reports the results in. Nitrate as N or Nitrate as NO3 ?
     
  19. irie ivan

    irie ivan MASA Contributor

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    Depends on which kit you use. I use Salifert which reports on NO3 and not NO3 - N
     
  20. Albert Terego

    Albert Terego

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    So although the tapwater you tested only had 2ppm NO3, it could theoretically go up to 44ppm (as NO3) and yet still be acceptable as drinking water.

    Not worth the chance, unless you test it each time you want to use it. The TDS of up to 1200ppm would also be of concern to me.

    That said both the first fills on my tanks were tapwater and I had no nuisance algae outbreaks of any significance, even during the cycling period.
     
  21. irie ivan

    irie ivan MASA Contributor

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    I have my own RO, which I use for the tank. TDS = 0, NO3 =0 and PO4 = 0. The only reason I tested tapwater was boredom and as I was tired of getting a 0.00 reading on my hanna c 203 from my tank, was hoping to see it read something....
    Gonna resort to running a comparitive carbon test for different brands to see which leaches the most..... For no other reason than justifying the purchase of my Hanna LR reagents...
     
    Last edited: 19 Dec 2012
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