Manhattan Reefs
 

Welcome to Manhattan Reefs, the premier website for coral reef aquarium owners in the New York City area.

You are not currently logged in to our site so you may not be able to access all of the wonderful content and features that we offer. Registration is fast, simple and absolutely free so please, join our community today!

If you have any problems with the registration process or your account login, please contact contact support.

User Name
Password
   Home Forums Market Chat Stores Register Search Today's Posts Mark Forums Read About MR

Vendor Notice
Please remember to use your reef club's 10% discount code. Enter code 07150 in the “view cart” section above Paypal checkout logo. All reverse osmosis systems should get the filters replaced at least annually. If you have poor water to begin with, you may need to change out more often. Our high quality FilmTec membrane will last from three to five years. ************************************************** *
Visit Vendor's Web Site


Reply
 
Share LinkBack Thread Tools Display Modes
Old 08-01-2013, 11:59 AM
#1
Airwaterice
Vendor: Vendor - Issue reason:  
Join Date: Jan 2009
Location: Olathe, KS
Posts: 85
Reefer Ratings: (0 (0%)
Friends: (0)
Send a Private Message My Facebook
Do it Yourself! Do you know how to test your TDS readings? - We have the answer!!




How do you do a TDS test?

Here are the steps to test if your RODI unit is functioning properly and removing the correct amount of TDS:

1. Fast Flush your unit for 10 minutes.

2. Make RODI water for 10 minutes

3. Take a TDS reading of your Tap water! (Now clean the TDS meter probes)

4. Take a TDS reading of your RO Only water (Before the DI). This reading should be less than 5 – 10% of the tap water reading. (If your TDS reading is more than 10%, replace your membrane.) Clean TDS meter probes.

5. Take a TDS reading of your RODI water. It should be close to ZERO! If this is a new DI filter and your meter reads higher than ZERO, your TDS meter is WRONG!!

FYI: A quick and easy test to determine if your DI is exhausting too quickly is calculated as follows: Example: If your tap water TDS is 200 PPM your RO only water after the membrane, should be around 10 PPM. Then divide 1200 by this 10 PPM equals about 120 gallons of RODI before your DI resin will exhaust. **This is for a 10” refillable cartridge. The In-Line DI filters only last HALF as long. The 20” refillables will last TWICE as long.
Reply With Quote
Old 08-01-2013, 09:44 PM
#2
Senior Member
Moneymaks24's Avatar
Join Date: May 2013
Location: Brooklyn
Posts: 1,387
Reefer Ratings: (6 (100%)
Friends: (3)
Send a Private Message
Good info
Reply With Quote
Old 08-02-2013, 07:42 AM
#3
Senior Member
oh207's Avatar
Join Date: May 2013
Location: Amityville, NY
Posts: 1,982
Reefer Ratings: (24 (100%)
Friends: (3)
Send a Private Message View oh207's Twitter Profile
Good info. I never understood how this thing works and have no way of testing or confirming its accuracy.
I think my TDS meter is built into the BRS RODI unit. And it usually read 0.02 in and 0 out.
Is there a handheld TDS meter I can purchase to confirm these readings? Or is it necessary?
__________________

---
Search for Cancer cure, search for Aliens, and search for the meaning of the Universe.
Reply With Quote
Old 08-02-2013, 09:02 AM
#4
Senior Member
thirty6's Avatar
Join Date: Aug 2007
Location: north NJ
Posts: 5,637
Reefer Ratings: (70 (100%)
Friends: (20)
Send a Private Message
Im not too ashamed to ask: how fast fluch ro unit? This could be part of my problems lately
Reply With Quote
Old 08-02-2013, 09:02 AM
#5
Airwaterice
Vendor: Vendor - Issue reason:  
Join Date: Jan 2009
Location: Olathe, KS
Posts: 85
Reefer Ratings: (0 (0%)
Friends: (0)
Send a Private Message My Facebook
Vendors

Yes, of course! We have an HM Digital handheld TDS meter for $22.22 or a Sennon Hand-held meter for $19.95.

If you need filters for your BRS unit, our filters are compatible with theirs because as long as you have standard 10" housings our filters are 10" filters. With the quarterly special we have right now, if you spend $50 you get a free hand-held meter. Otherwise, you can use your club specific 10% discount on either meter mentioned above.





Quote:
Originally Posted by oh207 View Post
Good info. I never understood how this thing works and have no way of testing or confirming its accuracy.
I think my TDS meter is built into the BRS RODI unit. And it usually read 0.02 in and 0 out.
Is there a handheld TDS meter I can purchase to confirm these readings? Or is it necessary?
Reply With Quote
Old 08-02-2013, 09:08 AM
#6
Airwaterice
Vendor: Vendor - Issue reason:  
Join Date: Jan 2009
Location: Olathe, KS
Posts: 85
Reefer Ratings: (0 (0%)
Friends: (0)
Send a Private Message My Facebook
Don't ever be ashamed to ask questions on how to properly use your RODI unit!

To Fast Flush an RO unit, you must first have a Fast Flush Flow Restrictor. http://www.airwaterice.com/product/F...estrictor.html

With the black valve, you simply turn it parallel with the flow arrow to flush. Once you have flushed, turn the "knob" perpendicular to close the restrictor.

The benefit of "flushing" your RODI unit is that helps to "clean" the membrane from any build up or preservatives that have gotten on it. This helps preserve the life/longevity of your membrane.

Hope this information was helpful!


Quote:
Originally Posted by thirty6 View Post
Im not too ashamed to ask: how fast fluch ro unit? This could be part of my problems lately
Reply With Quote
Reply
Thread Tools
Display Modes