rain water for topping up-good or bad?

Discussion in 'New Members' started by clinton stanford, 29 Sep 2009.

  1. clinton stanford

    clinton stanford

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    i wanted to find out if one could use rain water for topping up? if anyone can maybe give some advice if its good or bad...or if rain water could be harmfull to your system.
    thanks.
     
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  3. FransSny

    FransSny

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    Hi Clinton, I would not advise it.Remember that it still comes in contact with stuff on the way down (thus you would have to wait a while before starting the cath up). Also if I remember Rainwater has a very low ph.

    How you collect it is also important ie what surfaces did it come in contact with...just seems to much of a hassle
     
  4. clinton stanford

    clinton stanford Thread Starter

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    makes sense.i have been using rain water to top up..im shure its better than using tap water..our tap water is shocking!! i know RO water is best and im trying to make a plan to get an RO unit.i get the rain water from a freind who's dad has a huge big water tank.the water looks very clean but i suppose you will never know how clean it realy is untill to test it.ill test the PH in the rain water tonight for interest sake.
    thanks frans for the advice;)
     
  5. RiaanP

    RiaanP Moderator

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    And all the dust that is on the roof where the rain falls, will be washed down into the tank.
    Check the bottom of that tank. It should have a silt layer. That is the heavy parts that could settle. What about all the other particles dissolved?
    Check the water with a TDS meter, if very low, preferable 0, yes, then you are lucky. Most likely not.
     
  6. magman

    magman

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    I buy RO water, only 80c a litre, I think the TDS was .02. Try your local water shops.
     
  7. clinton stanford

    clinton stanford Thread Starter

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    thanks RiaanP.i think it would be best to stop using rain water;)

    our LFS sells it for R1.00 a litre...i think im going to havto start using RO water untill i get a RO unit;)
     
  8. FransSny

    FransSny

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    Yip more or less the going rate these days...still think an RO unit saves you money in the end... I think I paid about 1800 for mine
     
  9. crispin

    crispin

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    i drove 280km to get RO one way rather than using rain water or spring water. I dont trust anything with a TDS reading above 10.

    rain water often has a number of unwanted things in it (acid rain ring a bell?) and i wouldnt chance my reef with it personally
     
  10. clinton stanford

    clinton stanford Thread Starter

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    i have been given a RO unit its not working but im trying my best to get everyhting for it.i think it just needs new media...i hope:whistling:
    thanks for your input crispin;)
     
  11. Warr7207

    Warr7207

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    BAD, BAD, BAD. Check the TDS of rain water ;)
     
  12. Tony

    Tony

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    I'm afriad all we pollute the air with comes back with the rain
     
  13. clinton stanford

    clinton stanford Thread Starter

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    thanks guys for all your advice:thumbup: i got my RO unit today and i will be getting new media by the end of the week.so it will be running soon
     
  14. Tony

    Tony

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    Just remember to put the sediment filter before the carbon and to flush those two out for half an hour before attaching the membrane. Now flush the membrane with the two filters attached for half an hour then hook up the deionising resin. NOw you're ready to go
     
  15. clinton stanford

    clinton stanford Thread Starter

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    i was going to ask for help on how to set it up and if i must run it for a while before i can use the water.but now i know:)

    thanks tony;)
     
  16. crispin

    crispin

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    i learnt from that post too, thanks tony :)
     
  17. Tony

    Tony

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    Pleasure. Unfortunately I had to learn the hard way
     
  18. Prodigy

    Prodigy

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    Welcome to MASA
     
  19. riyadhessa

    riyadhessa

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    Tony many thanks as i am also buying an RO unit soon and have learn t quite a bit...Shot boet...
     
  20. Falcon

    Falcon

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    hehe.....thanks tony i dont have an r.o unit but getting one soon and will keep that in mind;)

    thats why we love masa....we learn at others expense:p(or mistakes).
     
  21. jaquesdp08

    jaquesdp08

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    what about fountain water ?? if the TDS is 0 ?? will there still be other stuff in it ?

    theres a farm with a natural spring he sells the water quite cheap.. i have an ro unit but have a new tank to fill just wondered.
     
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