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Part 1 Theory of Reverse Osmosis units and how to optimize p

This is part 1 of a 2 part series on how you can configure a working whole-house RO system.

Duration : 0:9:56


[youtube 5MDPBWKdSag]

This entry was posted on Saturday, April 17th, 2010 at 9:22 pm and is filed under units. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.

26 Responses to “Part 1 Theory of Reverse Osmosis units and how to optimize p”

  1. anthonyfoodie on April 17th, 2010 at 9:22 pm

    Great video. Wish I …
    Great video. Wish I saw this before Itried to install my own. It helps to have a basic understanding.

  2. @rldel149
    Thank …
    @rldel149
    Thank you for your quick response, honestly I haven’t noticed a warning label.

    Regards from Mexico

  3. I don’t believe …
    I don’t believe there is any basis in fact in that opinion. Left alone for long periods of time, deminerailzed water in copper or iron pipe, for example can be a bit aggressive but to suggest the same effect exist from human bones when the water would have to bypass the digestive system, the tissues therein and seek-out the bones seems quite silly.

    Demineralized water is sold when made by distillation and RO in drink bottles – think, have you ever seen a warning label?

  4. Thank you very much …
    Thank you very much for your clear explanation.

    One question regarding the distilled water, I have heard and read here that it absorbes the minerals from your body.

    Could you please explain why this is not true or not harmful to your body?

    Thank you for your time,

    Regards from Mexico

  5. fearmenot22890 on April 17th, 2010 at 9:22 pm

    problem with …
    problem with filmtec is they make the gaskets to big, so its a pain to install membranes on a unit

  6. Ah I see, thank you
    Ah I see, thank you

  7. The pressurized …
    The pressurized tank & pipe diameters provide the flow rate. Assuming the piping doesn’t change, to increase flow you must increase pressure (which it does) – the moving brine provides the work. The brine pump is a slave to system pressure whether boosted or not

    If water is drawn-down faster than it is made for long enough, it will deplete the storage (usable water) w/in the tank. Water will remain but there won’t be any air pressure to push it out (i.e the diaphragm or bladder tank function).

  8. Very informative …
    Very informative video, thanks. I don’t understand how pressure is maintained at the taps though surely the brine-driven pump cannot maintain the flowrate you demonstrate in the later video? Does the big gray tank contain a rubber diaphram or something to maintain system pressure? Thanks for any further info.

  9. Reverse osmosis is …
    Reverse osmosis is bad, is leaches minerals from your body, can give you brittle bones, osteoporosis, we should drink a slightly alkaline water, take alot of supplements if you do drink it, o and floride is put there to kill you and make you dumb, hitler did it too, type in Plastic coffins in you tube, endgame, zeitgeist

  10. Thank you for …
    Thank you for explaining things so well!

  11. You can always …
    You can always change the membrane to a 100 gpd if you are using more water than that you need a commercial system.Filmtec is one of the best membranes. The temperature of the water makes a difference as well. You need about 40 psi to make RO water. We had a gentlemen that had methane,hydrogen sulfate ,iron and only God knows what else in his water.Through an extra pump, a tank making micro bubbles, and peroxide, we were able to eliminate the H S. Other tanks were used to make his H2O perfect :)

  12. With respects, …
    With respects, there is nothing wrong with drinking distilled water. Nothing at all.

    However, I will respect your choice to avoid it if you choose and a personal choice for one of the boundaries of your own value system.

    Randal

  13. True2TheBlueYoViGang on April 17th, 2010 at 9:22 pm

    no sir don’t ever …
    no sir don’t ever recommend distilled water..that is poisonus if dranken to much it messes with something in ur body(look it up). I think it messes with the sodium in ur body? I could be wrong but its unfit for drinking

    Distilled water is specially made for machinery becuase it wont clog mechanisims and other things cuz when it evaporates or something it wont leave little particles that build up…

    REMEMBER THAT

    DISTILLED IS ONLY AND ONLY FOR USE WITHIN MACHINES never drink that EVER…

  14. True2TheBlueYoViGang on April 17th, 2010 at 9:22 pm

    I commend u sir for …
    I commend u sir for making this video.. it may be a little boring but it is fun to know. In fact did all of u know that astrounuaghts drink theyre urine? First they reverse osmosis it then drink. Interesting this proces can clean pee and salt water and make it drinkable isn’t it? Something to think about next time u have to let ur cow out of the barn. :D

    I only buy RO drinking water the tap is horrid im not comforatble drinking flouride and stuff that just doesnt belong there.

    5 stars :)

  15. I am not belittling …
    I am not belittling the worry or concern anyone may have for literally God only knows what is floating in most public water supplies nor am I skirting the original question. RO membranes are very good a rejecting so many large contaminants but they do not reject everything.

    Distillation is another process that removes/separates water but it is expensive and quite the energy hog.

  16. Clicking on some of …
    Clicking on some of these search links can mislead people. For as good as the Internet is at providing information, some accurate & true, some true in context but misleading out of context & other outright false, it is up to the consumer to filter through it (no RO pun intended).

    Back to the original point, each membrane has a rating based not only one differential pressures & yield but on rejection/size.

    I see a lot of DOW Chemical Filmtec membrane material being used to produce cartridges

  17. When I was a child …
    When I was a child growing up I recall my toothpaste had stannous (tin) fluoride. Now it contains sodium fluoride. I don’t know where this “66%” statistic comes from nor do I wish to contribute to debate but when I worked at a utility district, we injected hydrofluoric acid (the same stuff people use to etch/frost drinking glasses) into the supply as the source of fluorine. I don’t know much, but I think it wise to know specifically what form is in debate.

  18. He’s obviously …
    He’s obviously speaking about the form of flouride that is contained within 66% of the United States’ water supply…Solid form I suppose…And frankly, all I care about is the flouride being extracted out, that’s probably the most desecrating heavy metal additive in our water supply as for the current moment (speaking for 66% of us)…

  19. It filters out …
    It filters out partials not gases so it would depend on the form of the “flouride”.

  20. fastenough111 on April 17th, 2010 at 9:22 pm

    does it filter out …
    does it filter out fluoride? if so how can we get this?

  21. dont forget
    Ro …
    dont forget
    Ro consumes power while msf produces power
    the concentration of salt in Ro is high comparing to msf

  22. The concentrations …
    The concentrations to be removed in desalination (like onboard Naval vessels) are so significantly high multistaging is necessary.

    Desalination of low levels of contaminants in water sources qualifying as “fresh water” or even “brackish” are still effectively desalinated. RO systems can desalinate quite effectively without over complicating the issue.

    You don’t generally need a shotgun to kill a fly right? But use one where appropriate.

  23. msf is very famous …
    msf is very famous in desal world
    it means multi stage flashing plant

  24. What do you mean by …
    What do you mean by “MSF”?

  25. i like this idea …
    i like this idea too much
    but Ro compairing to MSF is nothing

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