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Thread: Beware when you buy RO systems or parts...

  1. #9
    Av8tor1's Avatar
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    adnedarn,

    I remember you saying you used a permeate pump and I noticed in your pic a booster pump, so yours would require a higer level of attachment quality then most of the rest of us (larger pressure differential then most), Im running 50psi on average with the rare 60psi.. (with permeate pump as well)

    just curious... what inlet pressure are you running... Im guessing 80psig if you are trying to get all the performance you can... but if you are around 80, maybe lower to 60 or 50 if this problem continues with a diff membrane source

    just an idea...
    Av

  2. #10
    Admin- I'm growing CPs in the Desert of Tucson, Az. adnedarn's Avatar
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    the premate pump is on my home system under the sink (which is my watts premier system). The booster pump in the g/h is because the g/h supply line is 1/4" (x 40ft) polly and the swamp cooler draws from that also. without the pump i have approx 20lbs pressure. with it, I'm closer to 45-50. so, that's not it
    -Andrew
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  3. #11
    Av8tor1's Avatar
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    nope... thats not it

  4. #12
    Admin- I'm growing CPs in the Desert of Tucson, Az. adnedarn's Avatar
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    I wouldn't be so angry about it if I thought there was even a possiblity of it being my fault. Everything is monitored so i pretty much know all the details of the system. here it is with the booster, (without the new DI) showing about 35 PSI in coming pressure. (so a little higher than i remembered but still in the range of needing a booster)



    and this booster is made for RO systems... 55-120gpd membranes.

    It would be great if we could find a different cause... But, it's not going to happen I fear.
    Andrew
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  5. #13
    Nepenthes Specialist nepenthes gracilis's Avatar
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    http://www.spectrapure.com IMHO the BEST RO systems out there. Have had their 90GPD http://www.spectrapure.com/St_line_p4.htm system for approx 4 years, OEM membrane. With a purge valve to flush membrane.

  6. #14
    Admin- I'm growing CPs in the Desert of Tucson, Az. adnedarn's Avatar
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    nepg- that's where i bought the DI and my last set of prefilters after watt's bull crap... They seem to ship pretty quick too. But make sure you buy enough to make up for shipping.. shipping one thing can be expensive.
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  7. #15
    Cardiac Nurse JB_OrchidGuy's Avatar
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    I remember saying in the chat box yesterday that there is a HUGE markup on these things. That is why you can buy a 100gpd filter on fleabay for 35 bucks. There really isn't much to the things for them to be so pricey. I will be looking for one soon so this topic is a good thing for me. Stay away from watts LOL.

    BTW Andrew what is DI you keep talking about? Drip irrigation?

    Ok I see it is de-ionizer, but why would you want to de-ionize it??
    JB
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  8. #16
    Admin- I'm growing CPs in the Desert of Tucson, Az. adnedarn's Avatar
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    Well, as I read it, there are only 2 manufactures of membrane material anyway.. so no matter where you go, you get one or the other... that whole story is on the ebay page of the $35 membrane, check that out.

    the DI system takes the low tds that the membrane creates... (currently i'm getting 9ppm) and removes the rest of it. So, my out water is 0ppm tds. It just like "finishes" cleaning the water the rest of the way. You could run un RO'd water through a DI and get 0 water also.. but then the DI runs out FAST. so you use them after RO and they last a long time.
    Andrew
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