Shop Orchid Care OrchidTalk Orchid Forum Weather Station Links Nursery

Welcome to OrchidTalk Orchid Forums


The Friendliest Orchid Community on the Internet!


  •  » Learn to Repot your Orchids
  •  » Learn Orchid Care Tips and Secrets
  •  » Find the perfect Orchid for your Growing Environment
  •  » Chat with Orchid Growing Professionals

OrchidTalk - "Bringing People Together to Grow Orchids Better!"


Let us help you grow your Orchids better; Join our community today.


YES! I want to register an account for free right now!


Register or Login now to remove this advertisement.

Results 1 to 3 of 3

RO Systems

This is a discussion on RO Systems within the New Growers: Ask the Senior Members forums, part of the New Growers category; How do I select a reliable RO system for my small backyard collection? I saw ...

Click here to increase the font size Click here to reduce the font size
  1. #1
    dshawn is offline Senior Member
    Real Name
    Dale
    My Grow Area
    Windowsill
    Favorite Orchid(s)
    Paph.,Cattleya and Vanda
    Join Date
    Jun 2013
    Gender
    Female
    Location
    Mission Viejo, California
    Posts
    218
    Member's Country Flag

    Cool RO Systems

    How do I select a reliable RO system for my small backyard collection? I saw some popular brand names in a large home and garden store. They were relatively inexpensive. What do I look for? I do not have a greenhouse. I have about 50 plants. Any suggestions would be greatly appreciated.

  2. #2
    raybark's Avatar
    raybark is offline Senior Member
    Real Name
    Ray Barkalow
    My Grow Area
    Under Lights
    Join Date
    Oct 2012
    Location
    Oak Island NC
    Posts
    1,273

    Default

    I don't know what you consider a reasonable cost, but expect to pay about $175-$200 for a good system.

    1) Be sure the system is assembled using standard parts, and utilizes maintenance components (sediment filters, carbon filters, membranes) that are readily available. Systems made using "quick change" components or custom-made ones can leave you stranded.

    2) Be sure there is a hydraulic cutoff switch. It's a mechanical device about the size of an egg that had 4 tubing connections on it, usually behind the membrane housing. When your tank is full of water, the switch shuts off ALL water flow; without it, the flush water would keep flowing. It's rare that the system doesn't have one, but I have seen them, especially in systems folks expect to operate manually.

    3) If your water is chlorinated, you want a 5-stage system, as the second carbon cannister helps protect the membrane for longer life.

    4) While not absolutely critical, I highly recommend that the system be assembled with quick-connect tube fittings, as it makes maintenance a lot easier.

    5) Think about your water volume needs, frequency of watering, and storage. RO systems are not "on-demand" water supplies. 100 gallons per day (gpd) is only about a cup a minute, and it would be really hard to water anything well at that rate. Standard systems come with a 3.2 gallon bladder tank, having a usable capacity of 2.25-2.5 gallons. If that's not enough to water once, you'll need to store water in other containers (which, if you do that, may negate the need for the bladder tank in the first place.

    6) Think about the flush water stream. A standard system is sized to pass 3 gallons of flush water past the membrane for each gallon of pure water produced. If that pure water stream is going into a pressurized bladder tank, as the back pressure increases that ratio increases, giving an average for the entire refill of something in the 4:1-5:1 range. They are specified as "4:1". Higher efficiency systems are available; mine, for example, is 2:1. If water conservation is important to you, or you pay a swerage fee, a higher-efficiency system is worth considering, and should not cost any more.

    (Please email me directly for more information: raybark@firstrays.com)

  3. #3
    dshawn is offline Senior Member
    Real Name
    Dale
    My Grow Area
    Windowsill
    Favorite Orchid(s)
    Paph.,Cattleya and Vanda
    Join Date
    Jun 2013
    Gender
    Female
    Location
    Mission Viejo, California
    Posts
    218
    Member's Country Flag

    Default

    Thank you very much for all the information, you've answered all my questions and then some. I appreciate your email too and will probably be contacting you.

Similar Threads

  1. Watering systems
    By chrisa in forum Semi Hydro / Lights / Greenhouses / Accessories
    Replies: 7
    Last Post: March 22nd, 2013, 03:18 AM
  2. Watering Systems
    By DEC in forum General Orchid Culture
    Replies: 4
    Last Post: June 14th, 2012, 10:26 PM
  3. Watering systems
    By ATester in forum Semi Hydro / Lights / Greenhouses / Accessories
    Replies: 4
    Last Post: May 15th, 2006, 02:32 PM
  4. Question about misting systems...
    By Gilda in forum General Orchid Culture
    Replies: 7
    Last Post: June 14th, 2004, 12:29 AM
  5. HID light systems
    By Paphraguy in forum General Orchid Culture
    Replies: 9
    Last Post: May 31st, 2004, 04:48 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
OrchidTalk --An Orchid Growers Discussion Forum brought to you by River Valley Orchidworks. A World Community where orchid beginners and experts talk about orchids and share tips on their care, cultivation, and propagation.