How soon do TDS drop after new filters & membrane on my RO?

Reeferon · 02/11/2010, 08:36 PM

So I hooked up my RO last night and have let it fill up about 3 gallons worth of water. My TDS are still the same.

How soon should it drop? I'm starting to think something is not right.

btw - I have put brand new pre filters and a brand new membrane in.

Slayer311 · 02/11/2010, 08:40 PM

should have been immediate, something is wrong. check make sure you don't have your effluent lines hooked up backwards come out of the membrane

Slayer311 · 02/11/2010, 08:42 PM

oh, and are you sure you seated the membrane all the way in, it has 2 gaskets on it, not easy to get it seated all the way in and if not, the effluent will come out with elevated tds.

Reeferon · 02/11/2010, 08:45 PM

I think the membrane is not seated all the way.

I'm going to reinsert it right now.

That's what she said.

Reeferon · 02/11/2010, 09:07 PM

I just reinstalled it. only this time i made sure to press it on all the way. I am still getting the same results

Reeferon · 02/11/2010, 09:35 PM

I tried it one more time. Only this time I dug up the directions that came with it from the trash. They say to place the filter in without applying force so that it protrudes out. Then to screw the cap on and let that pressure push it in.

ill post results

Reeferon · 02/11/2010, 09:50 PM

Same problem.
Any idea what is wrong with it??

The RO unit is a 4 year old Coralife RO unit.
All the filters are brand new

Bayliner · 02/11/2010, 09:55 PM

Are you sure your TDS meter is working ok ?

Reeferon · 02/11/2010, 10:45 PM

im going to check it against a friends. im pretty sure it is working well

Bayliner · 02/11/2010, 10:46 PM

how high of a reading are you getting ?

Reeferon · 02/12/2010, 08:14 AM

it reads 190.

and yes the TDS meter works properly because I used it to test some RODI water from the LFS and it read 2

Adam76 · 02/12/2010, 09:42 AM

Is it an in-line TDS or handheld

Reeferon · 02/12/2010, 10:35 AM

handheld

Reeferon · 02/12/2010, 10:36 AM

I've been emailing Jim from The filter guys and he has been very helpful in finding a solution.
I'll post results this after noon..

Reeferon · 02/14/2010, 08:56 AM

After emailing back and forth with Jim from 'The Filter Guys', we pinpointed what is the problem.

The unit that I have originally came with a 24 gpd membrane, so the flow restrictor located in the unit matches it.

I removed that flow restrictor from the elbow fitting and ordered and inline flow restrictor (supposedly the best kind) that matches my membrane.

Jim was really helpful. If you guys ever have problems, I would suggest contacting him from off the website www.thefilterguys.biz

augustasalty · 02/14/2010, 09:09 AM

i was going to say your pressure was too high. thats the problem mine had, it wasnt a filter from these guys, but it was sending my tds fairly high.

saltyj · 02/14/2010, 09:47 AM

Quote:

Originally Posted by Reeferon

I think the membrane is not seated all the way.

I'm going to reinsert it right now.

That's what she said.

02/11/2010, 08:36 PM	#1
Reeferon Moved On Join Date: Nov 2005 Location: Gainesville Posts: 748	How soon do TDS drop after new filters & membrane on my RO? So I hooked up my RO last night and have let it fill up about 3 gallons worth of water. My TDS are still the same. How soon should it drop? I'm starting to think something is not right. btw - I have put brand new pre filters and a brand new membrane in.

02/11/2010, 09:55 PM	#8
Bayliner Registered Member Join Date: Apr 2002 Location: Stoney Creek, Ontario Posts: 971	Are you sure your TDS meter is working ok ? __________________ A good friend will come and bail you out of jail...but, a true friend will be sitting next to you saying, "Darn...that was fun!" Current Tank Info: 75g Reef, mostly SPS, 2-250W 20K MH, 2-VHO Actinics Full Zeovit as of Jan 20th 2011

02/11/2010, 10:46 PM	#10
Bayliner Registered Member Join Date: Apr 2002 Location: Stoney Creek, Ontario Posts: 971	how high of a reading are you getting ? __________________ A good friend will come and bail you out of jail...but, a true friend will be sitting next to you saying, "Darn...that was fun!" Current Tank Info: 75g Reef, mostly SPS, 2-250W 20K MH, 2-VHO Actinics Full Zeovit as of Jan 20th 2011

02/11/2010, 08:40 PM	#2
Slayer311 Registered Member Join Date: Apr 2008 Location: Houston, TX Posts: 201	should have been immediate, something is wrong. check make sure you don't have your effluent lines hooked up backwards come out of the membrane

02/11/2010, 08:42 PM	#3
Slayer311 Registered Member Join Date: Apr 2008 Location: Houston, TX Posts: 201	oh, and are you sure you seated the membrane all the way in, it has 2 gaskets on it, not easy to get it seated all the way in and if not, the effluent will come out with elevated tds.

02/11/2010, 08:45 PM	#4
Reeferon Moved On Join Date: Nov 2005 Location: Gainesville Posts: 748	I think the membrane is not seated all the way. I'm going to reinsert it right now. That's what she said.

02/11/2010, 09:07 PM	#5
Reeferon Moved On Join Date: Nov 2005 Location: Gainesville Posts: 748	I just reinstalled it. only this time i made sure to press it on all the way. I am still getting the same results

02/11/2010, 09:35 PM	#6
Reeferon Moved On Join Date: Nov 2005 Location: Gainesville Posts: 748	I tried it one more time. Only this time I dug up the directions that came with it from the trash. They say to place the filter in without applying force so that it protrudes out. Then to screw the cap on and let that pressure push it in. ill post results

02/11/2010, 09:50 PM	#7
Reeferon Moved On Join Date: Nov 2005 Location: Gainesville Posts: 748	Same problem. Any idea what is wrong with it?? The RO unit is a 4 year old Coralife RO unit. All the filters are brand new

02/11/2010, 10:45 PM	#9
Reeferon Moved On Join Date: Nov 2005 Location: Gainesville Posts: 748	im going to check it against a friends. im pretty sure it is working well

02/12/2010, 08:14 AM	#11
Reeferon Moved On Join Date: Nov 2005 Location: Gainesville Posts: 748	it reads 190. and yes the TDS meter works properly because I used it to test some RODI water from the LFS and it read 2

02/12/2010, 09:42 AM	#12
Adam76 Registered Member Join Date: Feb 2008 Posts: 146	Is it an in-line TDS or handheld

02/12/2010, 10:35 AM	#13
Reeferon Moved On Join Date: Nov 2005 Location: Gainesville Posts: 748	handheld

02/12/2010, 10:36 AM	#14
Reeferon Moved On Join Date: Nov 2005 Location: Gainesville Posts: 748	I've been emailing Jim from The filter guys and he has been very helpful in finding a solution. I'll post results this after noon..

02/14/2010, 08:56 AM	#15
Reeferon Moved On Join Date: Nov 2005 Location: Gainesville Posts: 748	After emailing back and forth with Jim from 'The Filter Guys', we pinpointed what is the problem. The unit that I have originally came with a 24 gpd membrane, so the flow restrictor located in the unit matches it. I removed that flow restrictor from the elbow fitting and ordered and inline flow restrictor (supposedly the best kind) that matches my membrane. Jim was really helpful. If you guys ever have problems, I would suggest contacting him from off the website www.thefilterguys.biz

02/14/2010, 09:09 AM	#16
augustasalty Registered Member Join Date: Jun 2008 Location: Augusta, GA Posts: 80	i was going to say your pressure was too high. thats the problem mine had, it wasnt a filter from these guys, but it was sending my tds fairly high.