Go Back   Aquarium Advice - Aquarium Forum Community > Saltwater and Reef > Saltwater Reef Aquaria
Click Here to Login

Join Aquarium Advice Today
Reply
 
Thread Tools Search this Thread Display Modes
Please support our sponsors and let them know you heard about them on AquariumAdvice.com
 
Old 01-02-2008, 07:13 PM   #1
Aquarium Advice Freak
 
Join Date: Jun 2006
Posts: 295
Water General RD-102

I've got a Water General RD-102 RO/DI unit. It has been up for about year and produces about 10-15 gal per week.

The unit is rated @ 100 GPD but has gotten slooooow. It takes about 2.25 hours to fill a single 5 gal bottle.

Do I need to change all of the filters or is it likely that only 1 or 2 need changing? How can I tell?
__________________

__________________
46 gal FOWLR
11lb Live Rock - 40lb Live Sand
ProClear Pro 75 - LR rubble & skimmer in sump
AC 300 HOB
AC 402 Powerhead - AC 301 Powerhead
Charlie is offline   Reply With Quote
Old 01-02-2008, 07:22 PM   #2
SW 20 & Over Club
 
ccCapt's Avatar


 
Join Date: Mar 2004
Location: Northeast PA
Posts: 5,362
Send a message via ICQ to ccCapt
RO units don't produce as well in the winter when the water is colder.....that is if you live in a cold weather area. You should definitely change all the sediment and carbon filters on the unit. They all should be changed out yearly. The RO membrane should still be good. Do you have a TDS meter to test the output of your water?
__________________

__________________
ccCapt is offline   Reply With Quote
Old 01-02-2008, 07:35 PM   #3
Aquarium Advice Freak
 
Join Date: Jun 2006
Posts: 295
No - I don't have a TDS meter. It's easy enough to change the 3 large filters hanging from the bottom of the unit. I guess I'll order a set and see how that works.

The other filters are "in-line" and may be a pain to change, especially if it isn't necessary to do them yet.
__________________
46 gal FOWLR
11lb Live Rock - 40lb Live Sand
ProClear Pro 75 - LR rubble & skimmer in sump
AC 300 HOB
AC 402 Powerhead - AC 301 Powerhead
Charlie is offline   Reply With Quote
Old 01-02-2008, 09:20 PM   #4
SW REEF 18+ YEARS
Community Admin
 
melosu58's Avatar



Tank of the Month Award
 
Join Date: Oct 2004
Location: Virginia
Posts: 38,249
As CCCapt said during the winter it runs much slower. On mine I get about 5 gallons in 3 hrs but during the winter I get 5 gallons in about 6 hrs.
__________________

SITE ADMINISTRATOR

You can view many of my fish and corals in my photo albums in my profile.

View my tank


AA Community Rules|AA TOS

Forums 101 - posting, accounts, basics
melosu58 is offline   Reply With Quote
Old 01-02-2008, 09:58 PM   #5
Aquarium Advice Freak
 
Join Date: Jun 2006
Posts: 295
In that the filter is about 1 year old, should I just replace the 1st, 2nd and 3rd stage filters anyway?

The sediment filter looks clean but has a slight tan tint rather than the pure white that it was originally.

As an aside:: how can I change my displayed aquarium info? I went to "User CP" but did not see a link to update this info.
__________________
46 gal FOWLR
11lb Live Rock - 40lb Live Sand
ProClear Pro 75 - LR rubble & skimmer in sump
AC 300 HOB
AC 402 Powerhead - AC 301 Powerhead
Charlie is offline   Reply With Quote
Old 01-02-2008, 10:31 PM   #6
SW REEF 18+ YEARS
Community Admin
 
melosu58's Avatar



Tank of the Month Award
 
Join Date: Oct 2004
Location: Virginia
Posts: 38,249
Yes if the filters are a year old I would change them.
__________________

SITE ADMINISTRATOR

You can view many of my fish and corals in my photo albums in my profile.

View my tank


AA Community Rules|AA TOS

Forums 101 - posting, accounts, basics
melosu58 is offline   Reply With Quote
Old 01-03-2008, 12:33 AM   #7
Aquarium Advice Addict
 
Join Date: Aug 2006
Location: not here anymore
Posts: 5,338
If you have a RO/DI unit, a TDS meter is a really good investment. Without it, you're just guessing as to whether or not the unit is putting out "pure" water or not.

As others have said, the carbon/sediment prefilters should really be replaced yearly. I'd also replace the DI resin if you can't verify the output TDS.

PS: Looks like your tank info is listed in your "signature". Go to your control panel and check out your auto signature.
__________________
Kurt_Nelson is offline   Reply With Quote
Old 01-03-2008, 12:43 AM   #8
Aquarium Advice FINatic
 
MarineFlake's Avatar
 
Join Date: Mar 2004
Location: Memphis, Tn
Posts: 816
I change all the filters in the RO/DI every 6 months. It doesn't take much to clog a 5 or 1 micron hole!...I personally replace the membrane every year as well though others may disagree. The TDS meters are an ok tool to use to monitor it though output (as you now know) and water quality in your tank are the tell tale signs. It is true output is slower in the winter however, if you house the unit in your house, where we will assume it is heated, then output, at least for mine, is not affected.

GL!!
__________________

__________________
To fail to plan is to plan to fail.
MarineFlake is offline   Reply With Quote
Reply

Please support our sponsors and let them know you heard about them on AquariumAdvice.com

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
General Idea, half reef, half open water. xkenneth Saltwater & Reef - Getting Started 7 05-02-2006 01:23 PM
Water General 110gpd RO/DI unit. Anyone have one? austinsdad Saltwater Reef Aquaria 3 02-10-2005 09:44 AM
Some general questions before I start about water etc.!! itzafugasi Saltwater & Reef - Getting Started 3 07-22-2004 09:28 PM
General water conditions and pH CRaZeeeBiTcHisH Freshwater & Brackish - General Discussion 0 10-30-2002 01:32 AM







» Photo Contest Winners








Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -4. The time now is 07:12 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.